PDF.co vs Foxit PDF SDK: Cloud API vs. Embedded SDK

PDF.co vs Foxit PDF SDK: Cloud PDF API or Embedded SDK?

PDF.co and Foxit PDF SDK both enable developers to automate PDF tasks, but they represent different approaches to document processing.

PDF.co is a managed cloud API. Developers send files or URLs to specialized endpoints for conversion, extraction, generation, editing, security, and other document operations.

Foxit PDF SDK is a collection of software libraries that developers embed into web, mobile, desktop, server, and cloud applications. It provides interactive PDF viewing as well as lower-level programmatic access to PDF documents.

The short version:

  • Choose PDF.co when you want a hosted REST API that can be integrated quickly without deploying a PDF processing engine.
  • Choose Foxit PDF SDK when you need an embedded PDF viewer, interactive editing and annotation, offline processing, or direct control over the PDF engine.
  • Consider Foxit PDF Conversion SDK when locally deployed PDF-to-Office or Office-to-PDF conversion is the main requirement.

The decision is not only about features. It is also a choice between using a managed service and licensing document technology to operate inside your own application or infrastructure.

What Is PDF.co?

PDF.co is a REST API platform for cloud-based PDF and document automation.

Its available operations include:

  • Converting HTML to PDF
  • Converting website URLs to PDF
  • Converting office documents and spreadsheets to PDF
  • Converting images to PDF
  • Converting email files to PDF
  • Converting PDF pages to JPG, PNG, WebP, or TIFF
  • Extracting text from native and scanned PDFs
  • Converting PDFs to JSON, CSV, XML, XLSX, HTML, or text
  • Parsing invoices into structured JSON
  • Extracting fields and tables with reusable templates
  • Classifying documents
  • Splitting and merging PDFs
  • Compressing and optimizing PDFs
  • Filling PDF forms
  • Adding text, images, links, form fields, and signature images
  • Finding, replacing, or removing PDF text
  • Adding or removing passwords and permissions
  • Reading and generating barcodes
  • Extracting email attachments
  • Running asynchronous jobs with webhook callbacks

PDF.co operates the processing infrastructure. Customers call an endpoint, retrieve the result, and consume credits according to the operation performed.

PDF.co also provides ready-made integrations for Zapier, Make, n8n, Bubble, Microsoft Power Automate, Airtable, Salesforce, SharePoint, and other automation platforms.

What Is Foxit PDF SDK?

Foxit PDF SDK is a commercial PDF development toolkit for adding document capabilities to custom applications.

Foxit offers SDK products for:

  • Web applications
  • Windows
  • macOS
  • Linux
  • iOS
  • Android
  • Server-side processing
  • PDF-to-Office and Office-to-PDF conversion

Depending on the platform and licensed add-ons, Foxit PDF SDK can support:

  • PDF viewing and rendering
  • Annotations and markups
  • PDF creation
  • PDF text and object editing
  • Form creation and filling
  • Digital signatures
  • Document search
  • Redaction
  • OCR
  • PDF/A conversion and validation
  • Document security
  • Rights management
  • Page organization
  • Document comparison
  • Watermarking
  • Barcode generation
  • Attachments
  • Layers
  • XFA forms
  • Office conversion

Foxit SDK technology runs as part of the customer’s application or backend environment. The customer is responsible for integrating, licensing, deploying, scaling, and maintaining that implementation.

The Main Difference

PDF.co delivers PDF processing as an external cloud service.

Foxit PDF SDK delivers PDF technology as embeddable software libraries.

A typical PDF.co workflow looks like this:

  1. An application sends an HTTPS request to a PDF.co endpoint.
  2. PDF.co processes the document in its cloud infrastructure.
  3. The application receives an inline result or temporary output URL.
  4. PDF.co deducts credits for the operation.

A typical Foxit SDK workflow looks like this:

  1. A development team installs the appropriate Foxit library.
  2. The application initializes the SDK with a license.
  3. PDF processing runs inside the web, mobile, desktop, or server application.
  4. The development team manages deployment, updates, infrastructure, and application behavior.

PDF.co reduces infrastructure and implementation responsibility. Foxit provides more control over the user experience and processing environment.

Managed Cloud API vs. Embedded PDF Library

This architectural difference should be considered before comparing individual features.

PDF.co’s cloud API model

PDF.co is appropriate when an organization wants PDF functionality without embedding a native document engine.

The managed API model provides:

  • Hosted document processing
  • REST-based integration
  • API-key authentication
  • Automatic service updates
  • No PDF processing server to install
  • Synchronous and asynchronous operations
  • Webhook callbacks
  • Public subscription plans
  • No-code and low-code integrations

This works well for backend automations, SaaS workflows, integrations, scheduled jobs, and internal business processes.

Foxit’s embedded SDK model

Foxit is appropriate when PDF functionality must operate inside the application.

The SDK model provides:

  • Embedded PDF viewing
  • Interactive annotations and forms
  • Local document processing
  • Desktop application support
  • Mobile application support
  • Server-side processing
  • Offline operation
  • Low-level PDF object access
  • Custom interface development
  • Control over document storage and infrastructure

This works well for document-centric products, enterprise applications, native mobile experiences, and environments where files cannot be sent to an external processing API.

Embedded PDF Viewing

Foxit has a clear advantage when an application needs an integrated PDF viewer.

The Foxit PDF SDK for Web can display and annotate PDF documents inside desktop and mobile browsers without a browser plugin.

Depending on the licensed components, developers can provide users with:

  • High-fidelity PDF rendering
  • Page navigation
  • Thumbnails
  • Full-text search
  • Highlighting
  • Drawing
  • Notes and comments
  • Stamps
  • Form filling
  • Signature placement
  • Document security
  • Page management
  • Annotation import and export

Foxit also provides platform-specific SDKs for building viewers into Windows, macOS, iOS, Android, and Linux applications.

PDF.co is not an embedded PDF viewer. It processes documents through API calls and returns files or extracted data.

An application using PDF.co can display output in a separate viewer, but that viewer must be selected and integrated independently.

Choose Foxit when viewing and interacting with PDFs is a core product feature. Choose PDF.co when PDFs are processed in the background.

PDF Editing

Both products can modify PDFs, but they are optimized for different editing situations.

PDF.co editing

PDF.co provides task-specific endpoints for operations such as:

  • Adding text
  • Adding images
  • Adding links
  • Adding signature images
  • Adding form fields
  • Filling existing fields
  • Finding text
  • Replacing text
  • Deleting text
  • Inserting or deleting pages
  • Splitting and merging documents
  • Rotating pages
  • Applying passwords and permissions
  • Compressing PDFs

These operations work well when edits are defined in advance and performed automatically.

Foxit editing

Foxit SDK allows applications to expose editing and annotation tools directly to users or modify PDF objects programmatically.

Its APIs can work with:

  • Text objects
  • Image objects
  • Paths
  • Form XObjects
  • Page content
  • Annotations
  • Bookmarks
  • Layers
  • Attachments
  • Metadata
  • Page actions
  • Document JavaScript

This provides greater control over the internal structure of a PDF.

Choose PDF.co for repeatable server-driven changes. Choose Foxit for interactive or lower-level PDF editing inside a custom application.

PDF Creation and Generation

Both products can create PDF files.

PDF.co can generate PDFs from:

  • Raw HTML
  • Website URLs
  • HTML templates
  • JSON or CSV data
  • Office documents
  • Spreadsheets
  • Images
  • Email files
  • Existing PDF templates

This makes PDF.co useful for generating invoices, reports, tickets, certificates, receipts, statements, and other business documents.

Foxit PDF SDK can create PDF documents programmatically, add pages and content, generate reports, and manipulate individual PDF objects.

Foxit also offers an HTML-to-PDF conversion add-on. Office conversion capabilities are available through its conversion products and add-ons, although supported directions and operating systems can vary by product version.

Choose PDF.co when HTML-to-PDF or URL-to-PDF generation must be deployed quickly through a hosted endpoint. Choose Foxit when document creation must be tightly integrated into a desktop, mobile, or server application.

HTML-to-PDF Conversion

PDF.co provides dedicated HTML-to-PDF and URL-to-PDF endpoints.

A workflow can supply:

  • Raw HTML
  • CSS
  • A publicly accessible web URL
  • Header and footer content
  • Page size and orientation
  • Margins
  • Template data
  • Other rendering parameters

PDF.co’s HTML-to-PDF capability is also available through integrations such as Zapier, Make, n8n, and Bubble.

Foxit supports HTML or webpage conversion through its conversion add-on. Because Foxit is an SDK, the customer must integrate and deploy the conversion engine in a supported environment.

PDF.co is likely the easier choice when a business simply needs to call an API with HTML and receive a PDF.

Foxit may be preferable when HTML conversion must occur locally, offline, or inside an existing licensed Foxit application.

Office Document Conversion

Both vendors support Microsoft Office conversion, but the implementation differs.

PDF.co provides hosted endpoints for common operations such as:

  • DOC or DOCX to PDF
  • XLS or XLSX to PDF
  • PDF to Word
  • PDF to Excel
  • PDF to PowerPoint

Customers do not need Microsoft Office installed on the processing machine because PDF.co operates the conversion service.

Foxit PDF Conversion SDK is a separately available library for conversion between PDF and Microsoft Office formats.

Foxit lists support for:

  • PDF to DOCX
  • PDF to XLSX
  • PDF to PPTX
  • Supported Office formats to PDF

The SDK is available for languages and environments including C/C++, Java, .NET, .NET Core, Python, Node.js, and Go, depending on the current package.

Foxit states that its conversion engine does not require a third-party Office engine to be installed. However, conversion directions and platform support can differ, so teams should verify their exact operating system and format requirements.

Choose PDF.co for hosted conversion through REST. Choose Foxit when conversion must run inside customer-controlled Windows or Linux infrastructure.

OCR

Both products can convert scanned documents into searchable and extractable content.

PDF.co OCR

PDF.co can apply OCR while converting PDFs and images to:

  • Searchable PDF
  • Plain text
  • JSON
  • CSV
  • XML
  • HTML
  • XLS or XLSX

Depending on the endpoint, developers can configure:

  • OCR language
  • OCR resolution
  • Page ranges
  • Rotation
  • Line grouping
  • Image preprocessing
  • Treatment of images, vectors, and fonts

PDF.co’s OCR is delivered through its managed cloud service.

Foxit OCR

Foxit offers OCR as an add-on to its PDF SDK. It can process a single page or an entire PDF and create searchable text layers.

Foxit positions its OCR technology for scanning, archiving, document recognition, and conversion to several output formats.

Because Foxit is deployed as an SDK, OCR can run inside the organization’s own application or infrastructure.

Choose PDF.co when OCR should be consumed as an API. Choose Foxit when OCR must run locally, offline, on-premises, or as part of an embedded PDF product.

Data Extraction and Invoice Parsing

PDF.co provides several extraction options:

  • PDF to text
  • PDF to JSON
  • PDF to CSV
  • PDF to XML
  • PDF to XLS or XLSX
  • Table detection
  • Form-field extraction
  • Template-based document parsing
  • AI-powered invoice parsing
  • Document classification
  • Barcode recognition

The PDF.co AI Invoice Parser automatically detects invoice layouts and returns structured JSON.

The PDF.co Document Parser can use reusable templates to extract fields, tables, values, and barcodes from recurring document layouts.

Foxit provides APIs for extracting text, images, form data, annotations, attachments, page objects, and other PDF content. Layout Recognition is also available as an add-on.

However, Foxit PDF SDK is not primarily positioned as a ready-to-use AI invoice-parsing service that returns normalized invoice fields through one endpoint.

Developers can build extraction applications with Foxit, but they may need to create additional logic for:

  • Classifying incoming documents
  • Detecting invoice fields
  • Normalizing values
  • Mapping data to a business schema
  • Handling vendor-specific layouts

Choose PDF.co when invoice-to-JSON automation is the immediate requirement. Choose Foxit when extraction must be built into a larger custom document application.

Forms and XFA

Both products support PDF forms.

PDF.co can:

  • Read form-field information
  • Fill existing form fields
  • Add new form fields
  • Flatten completed forms
  • Add signature images
  • Automate form completion from external data

Foxit provides more extensive interactive form capabilities.

Its PDF SDK can support:

  • AcroForm creation
  • Form-field editing
  • Form filling
  • Adding and removing fields
  • Importing and exporting FDF
  • Importing and exporting XFDF
  • Importing and exporting XML form data
  • Form JavaScript
  • Widget-annotation access
  • XFA forms through an add-on

XFA support can be important for organizations working with older dynamic forms and certain government or enterprise document systems.

Choose PDF.co for automated form filling through an API. Choose Foxit when users must create or edit form fields or when XFA support is required.

Annotations and Collaboration

Foxit supports a broad set of PDF annotations, including:

  • Notes
  • Free text
  • Lines
  • Shapes
  • Polygons
  • Highlights
  • Underlines
  • Squiggly markup
  • Strikeouts
  • Stamps
  • Ink
  • File attachments
  • Redaction annotations
  • Watermarks
  • Links

Applications can create, edit, remove, search, import, export, and manage annotations.

Foxit does not automatically supply an entire collaborative business process, but its SDK gives developers the document-interface components needed to build review and approval applications.

PDF.co does not provide a directly equivalent interactive annotation interface. It can add predefined text, images, links, and other content through API requests, but it is not intended to serve as an in-browser review workspace.

Choose Foxit when users need to review and mark up documents interactively.

Redaction

Foxit offers a dedicated redaction add-on.

It can support workflows that:

  • Search for sensitive content
  • Mark content for redaction
  • Review proposed redactions
  • Apply redactions
  • Permanently remove underlying PDF content

Formal redaction is different from drawing an opaque rectangle over content. A visual overlay may leave the underlying text or image recoverable.

PDF.co can find, replace, or remove text and can apply passwords and encryption. Those operations may be appropriate for particular content-removal workflows.

However, organizations with legal, privacy, or regulatory redaction requirements should confirm that the chosen operation removes all required underlying content and metadata.

Choose Foxit when permanent redaction is a central, interactive, or compliance-sensitive application feature.

Electronic and Digital Signatures

PDF.co can add a signature image to a PDF and can populate form fields used in signing workflows.

Foxit provides more advanced digital-signature capabilities, including:

  • Adding signature fields
  • Applying third-party signatures
  • Verifying signatures
  • Loading certificates
  • PAdES support
  • PDF 2.0 long-term validation
  • Visible signature interfaces
  • Handwritten and ink signatures

A signature image is not equivalent to a certificate-based digital signature.

Choose Foxit when the application must validate document authenticity, protect signed content against modification, or support certificate-based signing standards.

Choose PDF.co when the workflow only needs to place a visible signature image or approval mark into a document.

PDF Security and Rights Management

Both products support PDF passwords and encryption.

PDF.co can:

  • Add a document password
  • Remove protection when authorized
  • Configure PDF permissions
  • Process password-protected input
  • Use AES encryption options
  • Generate temporary output links
  • Delete temporary files

Foxit supports:

  • Standard PDF security handlers
  • Password encryption
  • Certificate-based security
  • RC4 encryption
  • AES encryption
  • Custom security handlers
  • Microsoft Rights Management Services integration
  • Third-party IRM and DRM integrations

Foxit is the stronger option when rights management must be embedded directly into an enterprise application.

PDF.co is the more convenient option for adding or removing conventional PDF security through an API request.

PDF/A and Archiving

Foxit offers a PDF/A add-on for converting and validating archival PDF documents.

It can be used to:

  • Convert standard PDFs into supported PDF/A formats
  • Check whether third-party documents meet PDF/A requirements
  • Build archival validation into an application
  • Process documents locally or on company-controlled servers

PDF.co provides conversion and compliance-related document operations, but buyers with strict PDF/A validation requirements should confirm the exact conformance levels and validation behavior supported by the relevant endpoint.

Foxit is generally the stronger choice when PDF/A conversion and verification are central product requirements.

Document Comparison

Foxit offers a comparison add-on that can compare PDF documents page by page.

This can support:

  • Legal-document review
  • Contract revisions
  • Engineering drawings
  • Construction plans
  • Publishing proofs
  • Compliance review
  • Change detection

PDF.co does not provide a directly equivalent interactive document-comparison interface.

Choose Foxit when document comparison is an important part of the product’s review experience.

Barcode Processing

Both products include barcode functionality, but the scope differs.

PDF.co can:

  • Read barcodes from PDFs and images
  • Generate barcode images
  • Recognize common one-dimensional and two-dimensional formats
  • Split documents using detected barcodes
  • Route documents according to barcode values
  • Add barcodes to PDF workflows

Foxit PDF SDK can generate barcode bitmaps for formats including:

  • Code 39
  • Code 128
  • EAN-8
  • EAN-13
  • UPC-A
  • ITF
  • PDF417
  • QR codes

Foxit’s primary feature list emphasizes barcode generation. Teams needing barcode recognition should verify whether an appropriate Foxit product or additional scanning component is required.

Choose PDF.co when barcode reading and document routing are important. Foxit is a viable choice when barcode generation must be embedded inside an application.

Email Processing

PDF.co provides dedicated email-document capabilities.

It can:

  • Convert EML and MSG files to PDF
  • Extract email attachments
  • Process attachments in later PDF operations
  • Connect incoming mail to automation workflows

This is useful when invoices, statements, applications, or orders arrive as email attachments.

Foxit PDF SDK focuses on PDF and document functionality rather than offering a directly equivalent email-processing API.

Developers could combine Foxit with a separate email parser, but that component would need to be selected and maintained independently.

PDF.co is the more direct choice for email-to-PDF and attachment-processing workflows.

PDF-to-Image Conversion

Both products can render PDF pages as images.

PDF.co supports hosted conversion to formats such as:

  • JPG
  • PNG
  • WebP
  • TIFF

This is useful for:

  • Document thumbnails
  • Page previews
  • Website images
  • Computer-vision input
  • Archival workflows
  • Ecommerce and content-management systems

Foxit can render PDF pages into bitmaps and work with formats such as BMP, TIFF, PNG, JPEG, JPX, and GIF. Because rendering occurs through the SDK, developers have more control over local processing and application display.

Choose PDF.co when PDF-to-image conversion should be a simple cloud request or no-code action. Choose Foxit when image rendering must occur locally or inside a custom viewer.

Integrations and No-Code Automation

PDF.co has a substantial advantage for ready-made workflow integrations.

Its integration directory includes:

  • Zapier
  • Make
  • n8n
  • Bubble
  • Microsoft Power Automate
  • Airtable
  • Salesforce
  • SharePoint
  • Google Apps Script
  • Pabbly Connect
  • UiPath
  • Automation Anywhere
  • Xano

These integrations allow non-developers and automation teams to connect PDF processing with email, cloud storage, CRMs, databases, forms, and accounting systems.

Foxit PDF SDK is primarily integrated through code. It is intended for developers building PDF functionality into applications.

Foxit can participate in automated workflows, but the organization must build and operate the application or service that invokes its libraries.

Choose PDF.co when visual workflow construction and SaaS integrations are priorities. Choose Foxit when the document capability is being developed as part of a custom software product.

Deployment and Data Control

Foxit offers more control over where documents are processed.

Depending on the selected SDK, Foxit can run:

  • In a web browser
  • In a Windows application
  • In a macOS application
  • In a Linux application
  • In an iOS application
  • In an Android application
  • On an internal server
  • In a private or public cloud environment
  • In offline or restricted-network environments

Foxit PDF SDK for Web supports client-side deployment, which can reduce server requirements and keep supported document interactions inside the browser.

PDF.co is a hosted cloud service. Documents are sent to PDF.co infrastructure for processing.

PDF.co states that:

  • API traffic uses HTTPS
  • Documents are encrypted at rest using AES-256
  • Temporary files use randomized URLs
  • Generated files are deleted after one hour by default
  • Files can be deleted earlier
  • Its infrastructure runs on AWS
  • PDF.co is SOC 2 Type 2 compliant

Review the current PDF.co security documentation before processing regulated or highly sensitive documents.

Choose Foxit when local processing, offline use, or strict infrastructure control is required. Choose PDF.co when cloud processing is acceptable and avoiding infrastructure management is more important.

Developer Experience

PDF.co

PDF.co requests typically use an API key in the x-api-key header.

Many endpoints accept either an uploaded file or a publicly accessible source URL. Depending on the operation, PDF.co can return:

  • An inline result
  • A temporary output URL
  • A job identifier
  • Credit consumption
  • Remaining credits
  • Processing duration
  • Page count
  • Error information

Longer operations can run asynchronously and notify another system through a webhook.

PDF.co provides examples for cURL, JavaScript, Python, C#, Java, PHP, and other environments.

Foxit

Foxit implementation depends on the selected platform.

A development team generally needs to:

  1. Download or install the appropriate SDK.
  2. Add the Foxit libraries to its application.
  3. Initialize the library with a license key and signature.
  4. Select or configure required modules.
  5. Build the document interface or backend process.
  6. Package and deploy the application.
  7. Maintain SDK versions and infrastructure.

Foxit provides APIs for languages including C, C++, C#, Java, Python, Objective-C, JavaScript, Node.js, and others depending on the platform and product.

Foxit requires more implementation effort, but it gives developers much more control over document behavior and application design.

Infrastructure and Maintenance

PDF.co handles:

  • Document-processing servers
  • Service scaling
  • Runtime updates
  • Processing-engine maintenance
  • Cloud availability
  • API deployment

Customers are still responsible for request retries, error handling, credit monitoring, secure API-key storage, and downloading or deleting results.

With Foxit, the customer may be responsible for:

  • Server capacity
  • Application packaging
  • Runtime dependencies
  • SDK updates
  • Concurrency
  • Memory management
  • Monitoring
  • Scaling
  • Security patches
  • Operating-system compatibility
  • License management

Foxit can eliminate dependence on an external document-processing service, but it does not eliminate operational responsibility.

Pricing

Pricing information was checked in August 2026. Confirm current prices and license terms directly with each provider.

PDF.co pricing

PDF.co publishes subscription plans with monthly credit allowances.

Annual billing options listed in August 2026 include:

  • Basic at an annualized rate of $8.99 per month with 16,500 monthly credits
  • Personal at an annualized rate of $22.49 per month with 37,000 monthly credits
  • Business 1 at an annualized rate of $44.99 per month with 80,500 monthly credits
  • Business 2 at an annualized rate of $89.99 per month with 159,850 monthly credits
  • Business 3 at $270 per month with 483,000 monthly credits
  • Custom Enterprise plans for higher volumes

Credit use depends on the endpoint, number of pages, input format, and selected processing options.

The PDF.co pricing page includes a credit calculator for estimating a particular workflow.

Foxit PDF SDK pricing

Foxit does not publish standard PDF SDK prices.

Licensing is tailored to the customer’s:

  • Product
  • Required platforms
  • Feature modules
  • Add-ons
  • Deployment model
  • Application type
  • Distribution requirements
  • Expected usage
  • Support requirements

Potential add-ons such as OCR, redaction, PDF/A, XFA, comparison, rights management, or conversion may affect the quote.

Foxit invites customers to request a customized license from its sales team.

Foxit trial

Foxit’s current product pages advertise a 30-day PDF SDK trial and a browser-based Web SDK demo.

Trial terms may differ by product package. Some technical documentation describes evaluation limitations or watermarks on generated pages. Confirm the exact duration, included add-ons, output restrictions, and deployment rights for the SDK being evaluated.

Which pricing model is easier to estimate?

PDF.co is easier to estimate before contacting sales because it publishes subscription prices and provides a credit calculator.

Foxit requires a customized quote, but an SDK license may be financially attractive for high-volume applications where processing occurs on customer-controlled infrastructure.

A complete cost comparison should include:

  • Subscription or license fees
  • Required add-ons
  • Server infrastructure
  • Engineering time
  • Application maintenance
  • Scaling
  • Monitoring
  • Support
  • Upgrade work
  • Expected processing volume

When to Choose PDF.co

PDF.co is likely the better fit when:

  • You want a managed REST API
  • You do not want to deploy a PDF engine
  • You need to launch a document workflow quickly
  • You need AI invoice parsing
  • You need template-based data extraction
  • You need document classification
  • You need barcode recognition
  • You need email-to-PDF conversion
  • You need attachment extraction
  • You need HTML-to-PDF or URL-to-PDF
  • You use Zapier, Make, n8n, Bubble, or Airtable
  • You prefer public subscription pricing
  • Cloud processing is acceptable
  • PDF processing occurs primarily in the background

When to Choose Foxit PDF SDK

Foxit is likely the better fit when:

  • You need an embedded PDF viewer
  • Users must annotate documents
  • Users must edit PDFs interactively
  • You are building a native desktop application
  • You are building a native mobile application
  • You need offline PDF processing
  • Documents cannot leave your infrastructure
  • You need low-level access to PDF objects
  • You need XFA form support
  • You need advanced digital signatures
  • You need permanent interactive redaction
  • You need PDF/A verification
  • You need document comparison
  • You need integrated rights management
  • You have engineering resources to maintain an SDK implementation

Can PDF.co and Foxit PDF SDK Be Used Together?

Yes. The products can serve different stages of the same document workflow.

For example:

  1. Foxit PDF SDK displays a document inside an application.
  2. A user reviews, annotates, redacts, or signs the PDF.
  3. The application sends the approved file to PDF.co.
  4. PDF.co extracts invoice data or reads a barcode.
  5. PDF.co converts the pages to images.
  6. PDF.co sends the results into a Zapier, Make, or n8n workflow.

Another application could use PDF.co to receive and prepare email attachments before opening those documents in a Foxit-powered viewer.

Using both platforms adds licensing and implementation complexity, but it can make sense when a product requires Foxit’s interactive interface and PDF.co’s managed workflow endpoints.

Frequently Asked Questions

Is Foxit PDF SDK the same as Foxit PDF Editor?

No. Foxit PDF Editor is an end-user desktop application.

Foxit PDF SDK is a commercial development toolkit that software teams embed into their own products. This page compares PDF.co with the SDK rather than with Foxit’s desktop editor.

Does Foxit offer a hosted cloud API like PDF.co?

Foxit PDF SDK is primarily an embeddable library rather than a directly equivalent general-purpose hosted processing API. Developers deploy the relevant SDK in their own application or infrastructure.

PDF.co provides managed REST endpoints operated by PDF.co.

Does PDF.co include a PDF viewer?

PDF.co does not provide a directly equivalent embedded viewer. It processes PDFs and returns files or data. A separate viewer can be used to display PDF.co output.

Which product is easier to implement?

PDF.co is generally easier for a backend automation because developers can call a REST endpoint without deploying a PDF engine.

Foxit requires a deeper application integration, but it supports interactive viewing, editing, annotations, and local processing that PDF.co does not provide.

Which product is better for HTML to PDF?

PDF.co is usually the easier option when HTML should be sent to a hosted endpoint or converted within a no-code workflow.

Foxit may be preferable when HTML conversion must run locally or inside an existing Foxit-based application.

Test both products using representative HTML, CSS, fonts, images, page breaks, headers, footers, and dynamic content.

Which product is better for OCR?

PDF.co is appropriate when OCR should be consumed through a managed API.

Foxit is appropriate when OCR must run inside the customer’s application, on-premises, or offline.

OCR accuracy depends heavily on scan resolution, language, page rotation, noise, handwriting, and document layout. Test both products with real documents.

Which product is better for invoice extraction?

PDF.co provides a dedicated AI Invoice Parser and reusable extraction templates.

Foxit provides lower-level content and layout access but is not primarily positioned as a ready-made invoice-to-JSON service.

PDF.co is generally the more direct choice for invoice automation.

Which product is better for sensitive documents?

Foxit provides more infrastructure control because processing can occur locally or on customer-controlled servers.

PDF.co provides managed cloud processing with encryption and temporary-file controls.

The correct choice depends on data residency, privacy requirements, contractual obligations, internal policy, and available engineering resources.

Which product is more affordable?

PDF.co has transparent starting prices, making small and moderate workflows easier to estimate.

Foxit requires a custom quote. Its licensing may be advantageous for embedded or high-volume applications, but infrastructure and maintenance expenses must also be considered.

Final Verdict

Foxit PDF SDK is the stronger choice for embedded PDF viewing, interactive annotations, low-level editing, mobile and desktop applications, advanced forms, digital signatures, redaction, and locally controlled processing.

PDF.co is the stronger choice for managed cloud automation, invoice extraction, barcode recognition, email processing, HTML-to-PDF conversion, and no-code integrations.

Choose Foxit when PDF functionality is part of the application itself.

Choose PDF.co when PDF processing is a step in a larger automated workflow.

Before deciding, test both products with representative documents and compare:

  • PDF rendering quality
  • OCR accuracy
  • Conversion fidelity
  • Extraction accuracy
  • Form behavior
  • Signature requirements
  • Redaction behavior
  • Processing speed
  • Integration effort
  • Deployment restrictions
  • Infrastructure costs
  • Licensing costs
  • Ongoing maintenance
  • Expected document volume

Start Automating PDF Workflows

Use PDF.co to generate, convert, extract, edit, and automate PDFs through a managed REST API.

Foxit and Foxit PDF SDK are trademarks or product names of Foxit Software Incorporated or its affiliated entities. This independent comparison is provided for informational purposes and is not affiliated with or endorsed by Foxit. Product capabilities, trial terms, licensing, and prices may change. Consult each provider’s official documentation for current information.