PDF.co vs onPhase: AP Automation and PDF APIs

PDF.co vs onPhase (previously DocuPhase): Which Document Automation Platform Is Right for You?

PDF.co and DocuPhase both automate document-heavy business processes, but they are designed for different buying situations.

DocuPhase now operates under the name onPhase. It provides an enterprise finance and operations platform covering accounts-payable automation, supplier payments, document management, intelligent invoice capture, online forms, and approval workflows.

PDF.co is a developer-focused PDF and document-processing API. It provides OCR, invoice parsing, data extraction, PDF generation, format conversion, editing, form filling, barcode processing, and integrations with automation platforms.

The short answer:

Choose onPhase when you want a complete invoice-to-payment system for a finance team.
Choose PDF.co when developers or automation specialists need APIs for processing PDFs and extracting document data.
Choose onPhase when document storage, approvals, ERP synchronization, purchase-order matching, and supplier payments should be delivered as one managed business platform.
Choose PDF.co when you want to build your own document workflow or add PDF capabilities to an existing application.
Some organizations can use both: PDF.co for custom document processing and onPhase for financial approvals, records, and payments.

Important Naming Update: DocuPhase Is Now onPhase

DocuPhase has rebranded as onPhase.

The legal entity remains DocuPhase, LLC, doing business as onPhase, but the company’s current product pages, branding, and sales materials use the onPhase name.

The company explains that it was founded as DocuPhase in 2000 and expanded from document management and workflow automation into accounts payable, payments, online forms, and document storage. See the onPhase company overview.

For clarity, this comparison uses “onPhase” when discussing the current platform and “DocuPhase” when referring to the previous product name or legacy material.

What Is onPhase?

onPhase is a cloud-based finance and operations automation platform.

Its current product areas include:

Accounts-payable automation
Invoice capture
Approval workflows
Purchase-order matching
Supplier payments
Supplier onboarding
Document management
Online forms
Business-process automation
Consumer payment services
ERP and dealer-management-system integrations
Reporting and audit trails

The platform is intended primarily for finance, accounting, and operational teams rather than developers looking only for an individual PDF function.

A typical onPhase customer wants to replace a process involving:

Invoices arriving through email
Manual invoice data entry
Approval requests sent through email or chat
Purchase orders checked manually
Payment information entered into several systems
Vendor questions handled individually
Documents stored across shared drives
Audit records assembled by hand

onPhase brings those activities into one managed workflow.

What Is PDF.co?

PDF.co is a hosted API platform for PDF generation, document conversion, OCR, data extraction, and PDF manipulation.

Its capabilities include:

AI invoice parsing
Template-based document parsing
OCR for scanned PDFs and images
PDF-to-CSV, JSON, XML, Excel, text, HTML, and images
HTML-to-PDF
URL-to-PDF
Email-to-PDF
Word, Excel, image, and document-to-PDF conversion
PDF merging and splitting
PDF compression
Text and image addition
Text search, deletion, and replacement
Form filling
Password addition and removal
Barcode and QR code reading and generation
Document classification
Page deletion and rotation

PDF.co can be used through REST API calls or through platforms such as Zapier, Make, and n8n. The current feature catalog is available in the PDF.co documentation.

The Main Difference: Business Platform vs Document API

The central difference is the level at which each product operates.

onPhase provides a finished business process. It manages invoices from receipt through coding, matching, approval, payment, storage, and ERP synchronization.

PDF.co provides document-processing components. Developers and automation specialists decide how those components should be assembled into a business process.

An onPhase invoice workflow may include:

Receive an invoice by email, upload, or supplier portal.
Extract vendor, tax, header, and line-item information.
Validate uncertain results.
Assign general-ledger codes.
Match the invoice with purchase orders and receipts.
Route it according to approval rules.
Resolve exceptions.
Schedule and issue payment.
Synchronize the transaction with the ERP.
Store the invoice with an audit trail.
Give the supplier access to payment status.

A PDF.co invoice workflow may include:

Receive an invoice through an application or automation.
Extract an email attachment.
Run OCR or AI invoice parsing.
Return the extracted data as JSON.
Send the data to an ERP or database.
Add an approval stamp to the PDF.
Merge supporting documents.
Compress the completed package.
Store it in the company’s chosen system.

PDF.co supplies the document operations, while the customer builds or configures the approval and payment process around them.

Accounts-Payable Automation

Accounts-payable automation is one of onPhase’s strongest areas.

The platform supports invoice processing from capture to payment, including:

Invoice intake
Header and line-item extraction
Vendor identification
Tax-data extraction
General-ledger coding
Approval routing
Email approvals
Exception handling
Purchase-order matching
Supplier payments
ERP synchronization
Reporting
Audit trails

onPhase is designed for accounting teams that need operational visibility. Users can see where an invoice is in the process, who must approve it, why it is on hold, and whether it has been paid.

PDF.co does not provide a complete accounts-payable workspace. It does not replace all the functions of:

An AP approval system
A supplier portal
A payment platform
An ERP
A purchase-order system
A finance-team reporting dashboard

PDF.co can power the document-processing layer of an AP workflow, but the customer must supply or connect the other business systems.

Invoice Capture and OCR

Both platforms can extract invoice data.

onPhase invoice capture

onPhase uses AI-assisted capture and human review to extract information such as:

Vendor name
Invoice number
Invoice date
Due date
Purchase-order number
Taxes
Totals
General-ledger information
Line items
Handwritten information

The current onPhase AP page advertises extraction accuracy of up to 99% through a combination of AI and human-in-the-loop validation. When the software cannot confidently process a value, an onPhase validation team can handle the exception before it reaches the customer’s AP team.

That service component is a meaningful distinction. The goal is not simply to return an OCR result but to deliver validated invoice data into the financial process.

Accuracy claims should still be tested against the buyer’s actual invoices. Results can vary based on scan quality, handwriting, invoice layout, language, and the fields being extracted.

See the current onPhase AP automation overview.

PDF.co invoice capture

PDF.co provides an AI Invoice Parser that returns structured invoice data without requiring a template.

It can also use Document Parser when a workflow needs:

Explicit extraction regions
Reusable document templates
Custom field rules
Table extraction
Barcode extraction
Predictable output for recurring layouts

PDF.co is useful when developers want invoice results through an API and prefer to implement their own validation, exception, and approval logic.

The practical distinction is:

onPhase delivers captured invoice data as part of an operated AP process.
PDF.co returns document data to an application or automation for further processing.

Human-in-the-Loop Validation

onPhase combines automated capture with human review.

This can be valuable when an organization wants to reduce the exceptions reaching its AP team. Instead of asking accounting employees to correct every uncertain field, onPhase can use its validation process to review capture exceptions.

Potential advantages include:

Less manual keying by AP employees
More consistent invoice data
Fewer extraction errors entering the ERP
Reduced time spent resolving OCR exceptions
Faster invoice routing

However, buyers should ask:

Which fields receive human validation?
Is human review included in the quoted price?
What turnaround times apply?
How is sensitive data handled by reviewers?
Where are reviewers located?
What happens during unusual volume spikes?
Are all invoice types supported?
How are corrections measured and reported?

PDF.co provides automated extraction results rather than a fully managed validation service. Customers can create their own validation process using business rules, database lookups, confidence values where applicable, and human-review queues.

This provides more architectural flexibility but also gives the customer more responsibility.

Purchase-Order Matching

onPhase supports:

Two-way matching
Three-way matching
Four-way matching

Depending on the workflow, the platform can compare invoice data against purchase orders, receipts, and other records.

Matching can help identify:

Quantity differences
Price differences
Missing receipts
Duplicate invoices
Unauthorized purchases
Invoices that exceed tolerance rules

This is an accounting-process feature rather than a general PDF feature.

PDF.co can extract invoice and purchase-order data, but it does not independently function as a complete PO-matching and exception-management system.

A custom PDF.co workflow could:

Parse an invoice.
Extract its PO number.
Retrieve the related purchase order from an ERP.
Compare totals or line items through application logic.
Route the exception for approval.

The customer would be responsible for building and maintaining that matching logic.

General-Ledger Coding

onPhase can automatically assign or recommend general-ledger coding based on invoice data, vendor history, accounting structure, and configured rules.

This helps finance teams reduce repetitive coding work and maintain more consistent accounting records.

PDF.co can extract the values needed to make a coding decision, but it does not provide an accounting ledger or complete GL-coding application.

A PDF.co workflow would normally send extracted data to:

An ERP
Accounting software
A database
A custom rules engine
An AI classification service

The receiving system would determine the correct account, cost center, department, entity, or project.

Approval Workflows

onPhase provides configurable approval workflows for business users.

Invoices can be routed based on criteria such as:

Vendor
Department
Location
Legal entity
General-ledger code
Invoice amount
Purchase-order status
Exception type
Cost center
Project

Approvers can review requests remotely, and the system maintains a record of actions and status changes.

The broader onPhase Forms and Workflow product also allows teams to build digital forms and approval processes with low-code, drag-and-drop tools. It can be used for processes such as:

Purchase requests
Expense reports
Employee onboarding
Travel requests
Sales orders
Vendor onboarding
Check requests
Compliance approvals

PDF.co does not provide a comparable business-user approval workspace. It can generate, fill, analyze, or modify the documents used in an approval process, but workflow state and user decisions must be managed by another system.

For example, PDF.co can be combined with:

Zapier
Make
n8n
Microsoft Power Automate
A custom web application
A CRM
An ERP
A project-management platform

Supplier Payments

onPhase extends beyond invoice approval into supplier payments.

Its payment capabilities include options such as:

ACH
Virtual cards
Checks
Cross-border payments
Payment batching
Payment-status tracking
Payment controls
Supplier remittance information

The platform can synchronize payment information with the ERP and give finance teams visibility into outgoing cash.

onPhase also offers supplier-facing functions intended to reduce routine questions about invoice and payment status.

PDF.co does not transmit supplier payments or act as a treasury platform. It can process related documents, such as invoices, remittance notices, checks, or payment records, but the actual movement of money requires an accounting, banking, or payment service.

Choose onPhase when payment execution is part of the required platform. Choose PDF.co when the goal is to process the documents surrounding a payment.

Supplier Portal and Vendor Onboarding

onPhase can support supplier onboarding and self-service.

Depending on the selected solution, suppliers can provide or access information such as:

Company details
Tax documentation
Banking details
Invoice status
Approval status
Payment status
Remittance information

A supplier portal can reduce status emails and calls to the AP team.

PDF.co does not include a supplier portal. It can help process onboarding documents by:

Extracting fields from W-9 forms
Reading certificates or applications
Converting uploaded files
Filling standardized PDF forms
Merging a vendor packet
Sending structured data into a vendor-management system

The portal, identity controls, approval process, and supplier records must come from another application.

Document Management

Document management is another major onPhase capability.

The platform provides a central repository with features such as:

Cloud storage
Automatic indexing
OCR capture
Full-text search
Configurable metadata
Custom permissions
Automatic routing
Version and activity history
Audit trails
Remote access
Connections to business systems

This is useful for invoices as well as:

Vendor contracts
W-9 forms
Certificates of insurance
Purchase orders
Remittance records
Employee files
Healthcare records
Dealership documents
Audit materials

The current features are described on the onPhase document management page.

PDF.co is not a long-term document management system. It accepts or retrieves documents for processing and can return temporary output links, but customers should store completed files in their own approved repository.

PDF.co can work with storage and document-management platforms through APIs and automation services, but it does not replace their:

Folder or cabinet structures
Retention policies
User-facing search
Records-management controls
Legal holds
Version history
User permissions
Long-term audit repository

Online Forms

onPhase provides an online form builder that can replace paper forms, spreadsheets, and fillable PDFs.

Business users can create forms, add validation rules, trigger alerts, and route submissions through approval processes. Completed records can enter document management or another connected system.

This is appropriate when the organization wants to redesign a process around web forms rather than continue exchanging static PDF forms.

PDF.co takes a different approach. It can:

Read fields in supported PDF forms
Fill existing form fields
Add new text or images at specified coordinates
Flatten completed content where supported
Generate PDFs from HTML
Convert submitted data into a finished PDF

PDF.co is useful when a PDF remains the required output or when a custom application already owns the web form.

Choose onPhase when business teams need to create and manage the entire form-and-approval process. Choose PDF.co when developers need to process or generate the resulting documents.

Electronic Signatures

Current onPhase materials describe authentication-based digital-signature workflows with audit trails in certain business-process solutions.

These are intended for approval and operational workflows in which users need to sign forms or records within the platform.

PDF.co can place a supplied signature image or other visible content onto a PDF. It can also participate in workflows that connect to dedicated e-signature services.

Adding a signature image is not necessarily equivalent to:

Authenticating a signer
Recording consent
Inviting multiple recipients
Enforcing signing order
Producing a tamper-evident audit trail
Issuing a completion certificate

Buyers should confirm exactly which signature method, authentication controls, and legal records are included in the proposed onPhase solution.

ERP and Accounting Integrations

onPhase is designed to connect directly with ERP, accounting, and dealer-management systems.

Its current integration materials list platforms including:

NetSuite
Microsoft Dynamics 365
Business Central
Dynamics GP
SAP
Sage
Infor
Acumatica
Workday
JD Edwards
QuickBooks
Procede
CDK
Karmak
Tekion
Dealertrack
Excede

The available integration method may vary by product and customer environment. onPhase supports approaches including:

APIs
Secure file transfer
Direct database or system access
Other configured integration channels

The platform can synchronize invoice data, vendor records, GL codes, approval statuses, and payment information.

Review the current onPhase ERP integrations page and confirm whether the desired connector is prebuilt, partner-supported, or custom.

PDF.co is not an ERP integration platform by itself. It returns data that can be sent to an ERP through:

Custom API development
Zapier
Make
n8n
Microsoft Power Automate
RPA software
Middleware
ERP-specific connectors

PDF.co offers greater flexibility for custom architectures, while onPhase provides a more complete finance-oriented implementation.

Zapier, Make, and n8n

PDF.co provides documented integration options for:

Zapier
Make
n8n

This is useful for teams building workflows such as:

Extract an invoice from an email.
Convert it into structured JSON.
Add a row to a spreadsheet.
Create a record in an accounting application.
Route an approval request.
Rename and upload the original document.
Notify the responsible employee.

onPhase focuses more heavily on native ERP connections, managed implementation, and its own workflow environment. Its current public pages do not position Zapier, Make, or n8n as the primary way customers automate AP.

Choose PDF.co when a flexible no-code or low-code automation stack is already in place. Choose onPhase when the buyer wants a unified, supported financial workflow rather than assembling one from several services.

PDF Generation and Conversion

PDF.co offers substantially more general-purpose file conversion.

It can create PDFs from:

HTML
Website URLs
Images
Word documents
Excel files
Email
Email attachments
Other supported document formats

It can convert PDFs into:

JPG
PNG
TIFF
Text
CSV
JSON
XML
Excel
HTML

onPhase can generate documents from forms and business workflows, but it is not positioned as a general-purpose conversion API for arbitrary developer applications.

PDF.co is the clearer choice when the requirement includes:

HTML-to-PDF
URL-to-PDF
PDF-to-JPG
PDF-to-CSV
PDF-to-JSON
Email-to-PDF
Office-document conversion
High-volume format transformation

PDF Editing and Manipulation

PDF.co provides APIs for:

Merging PDFs
Splitting documents
Compressing PDFs
Deleting pages
Rotating pages
Adding text
Adding images
Adding other PDFs
Adding links
Searching and replacing text
Deleting selected text
Adding or removing passwords
Reading form and document information

onPhase stores and routes documents but is not a developer-oriented API for arbitrary PDF manipulation.

For example, PDF.co is more suitable when an application needs to:

Add a case number to every uploaded PDF.
Split a batch using page ranges.
Convert each page to JPG.
Replace text in a generated document.
Merge an invoice with supporting records.
Apply a password before delivery.
Compress documents before archival.

Barcode and QR Code Processing

PDF.co can generate and read supported one-dimensional and two-dimensional barcodes.

It can read barcodes from:

PDFs
Images
Remote files available through a URL

This supports workflows such as:

Separating document batches
Routing forms
Identifying cases or customers
Reading shipment numbers
Generating labels
Matching pages with database records

onPhase may use indexing, OCR, metadata, and integrations to identify documents, but it is not presented as a general barcode API.

If barcode processing is a significant developer requirement, PDF.co offers the more direct capability.

Reporting, Controls, and Audit Trails

onPhase provides operational reporting and audit records across document and AP workflows.

Finance teams can use the platform to monitor:

Invoice status
Approval bottlenecks
Exceptions
Payment status
Processing time
Cash requirements
User actions
Document history
Supplier activity

Role-based permissions and separation-of-duties controls can help organizations prevent one user from controlling every stage of an invoice or payment process.

PDF.co provides API responses and processing information, but it does not replace a finance dashboard or accounting audit trail. Customers must log:

API requests
Document IDs
Extracted values
Validation results
User approvals
ERP updates
Payment events
Storage locations

PDF.co provides the processing layer; the application must provide the business audit layer.

Security and Compliance

onPhase states that its security and compliance program includes:

SOC 1 Type II
SOC 2 Type II
HIPAA compliance
Nacha compliance
Role-based access controls
Single sign-on support
Separation of duties
Time-stamped audit trails

These controls are particularly relevant because the platform can store financial records, vendor information, healthcare documents, and payment data.

PDF.co publishes security information for its API and offers advanced security features on its plans. Its pricing page also links to SOC 2 information.

Before purchasing either product, review:

The exact services covered by each audit or certification
Hosting and processing regions
Data-retention rules
Encryption at rest and in transit
Subprocessors
User authentication
Single sign-on
Role-based access
API-key security
Audit-log retention
Backup and disaster recovery
Payment-security responsibilities
HIPAA requirements
Incident-response terms
Contractual deletion procedures

Security documentation should be reviewed for the actual product and deployment being purchased—not only for the vendor’s organization as a whole.

Implementation

onPhase normally involves a consultative sales and implementation process.

Implementation may include:

Process discovery
Invoice-sample review
ERP integration
Approval-rule configuration
User and role setup
General-ledger mapping
Purchase-order matching rules
Payment setup
Supplier onboarding
Document migration
Training
Testing
Go-live support

This can produce a more complete result, but it may take longer than adding an individual API endpoint.

PDF.co offers self-service access. A developer can create an account, test endpoints, and begin integrating without a full enterprise implementation.

However, a complete custom AP workflow built with PDF.co may still require substantial work. The team must design:

Invoice intake
Extraction
Validation
Approval state
ERP synchronization
Exception handling
Payment integration
Document storage
Reporting
User permissions
Monitoring

The comparison is therefore not “long implementation versus no implementation.” It is managed platform implementation versus customer-built application integration.

Pricing

The products use different pricing approaches.

onPhase pricing

onPhase does not publish standard subscription prices on its current product pages. Buyers are asked to schedule a discovery call or product demonstration.

Pricing may depend on:

Selected modules
Invoice volume
Number of entities
Number of users or approvers
ERP integrations
Document-storage requirements
Payment volume and methods
Human validation
Supplier-portal requirements
Implementation services
Training
Support
Data migration
Custom workflow configuration

Request a detailed quote separating:

Software subscription
Implementation
ERP integration
Data migration
OCR and validation
Storage
Payment fees
Supplier services
Support
Training
Custom development
Future expansion

Payment-related revenue or rebate arrangements should also be clearly documented.

PDF.co pricing

PDF.co uses credits. Credit consumption varies by endpoint, operation, and page count.

At the time of review, annual-billing prices include:

Basic: $8.99 per month with 16,500 credits
Personal: $22.49 per month with 37,000 credits
Business 1: $44.99 per month with 80,500 credits
Business 2: $89.99 per month with 159,850 credits
Business 3: $270 per month with 483,000 credits
Enterprise: Custom pricing

Review current prices and calculate the required endpoints on the PDF.co pricing page.

How to compare total cost

Do not compare an onPhase platform quote directly with PDF.co’s entry-level API price without accounting for what each product includes.

Estimate:

Monthly invoice and page volume
OCR and parsing operations
Human validation
AP employee time
Approval delays
Duplicate or erroneous payments
ERP integration
Supplier inquiries
Payment fees
Storage
Audit preparation
Custom development
Infrastructure
Support
Maintenance
Future workflow changes

onPhase may cost more as a subscription but replace several financial processes and services. PDF.co may have a much lower entry cost but require the customer to build and operate the surrounding workflow.

Where onPhase Is Stronger

onPhase is likely the better choice when:

A complete invoice-to-payment platform is required.
Finance users need a dedicated workspace.
Invoices require human-assisted validation.
Purchase orders and receipts must be matched automatically.
General-ledger coding should be automated.
Approvals must follow accounting rules.
Supplier payments should be managed in the same platform.
A supplier portal is required.
Documents need long-term storage and full-text search.
The organization needs complete operational audit trails.
A direct ERP or DMS integration is important.
Business users need low-code forms and workflows.
A vendor-led implementation is preferred.

Where PDF.co Is Stronger

PDF.co is likely the better choice when:

Developers need an API rather than a completed AP application.
A custom SaaS product requires PDF capabilities.
Documents need OCR or structured extraction.
PDFs must be converted into CSV, JSON, XML, Excel, HTML, JPG, or PNG.
HTML, URLs, emails, images, or documents must be converted into PDF.
Existing PDFs need to be edited, merged, split, compressed, or protected.
PDF forms must be filled through an API.
Barcodes or QR codes must be read or generated.
The workflow will run in Zapier, Make, or n8n.
The organization already has approval, ERP, payment, and storage systems.
Self-service testing and public pricing are important.

Can PDF.co and onPhase Be Used Together?

Yes.

PDF.co can handle specialized document transformations around an onPhase financial workflow.

One combined process could:

Receive an invoice and supporting documents from a shared mailbox.
Use PDF.co to extract attachments and normalize their formats.
Merge related files into one package.
Send the invoice into onPhase.
Use onPhase to capture and validate invoice data.
Apply GL coding and PO matching.
Route the invoice for approval.
Issue the supplier payment.
Synchronize the transaction with the ERP.
Use PDF.co to create an archival image or compressed copy if required.
Store the completed package in the document repository.

Another workflow could use PDF.co for non-AP documents while onPhase manages invoices and financial records.

Before using both, confirm:

Which system owns the original document
Which system stores the final record
How duplicate processing will be prevented
Which system controls retention
How document and transaction IDs will be matched
Which product supplies the authoritative audit trail

Questions to Ask Before Choosing

Before selecting onPhase or PDF.co, ask:

Do we need a complete AP platform or individual document APIs?
Who will use the system: finance employees, developers, or both?
Do we need invoice approval routing?
Must invoices be matched with purchase orders and receipts?
Do we need supplier-payment execution?
Is a supplier portal required?
Do we already have a document repository?
Which ERP or DMS must be integrated?
Is the integration prebuilt or custom?
Do we need human validation of OCR results?
What accuracy is achieved on our own invoices?
Do we need HTML-to-PDF or URL-to-PDF?
Must PDFs be converted to CSV, JSON, Excel, or images?
Do we need to edit, merge, split, or compress arbitrary PDFs?
Are Zapier, Make, or n8n part of our architecture?
Who will maintain approval and extraction rules?
What implementation services are required?
How will historical documents be migrated?
What are the payment and transaction fees?
What security reviews and certifications are required?
What is the complete three-year cost?

Frequently Asked Questions

Is DocuPhase now called onPhase?

Yes. The company currently markets its platform as onPhase. Its legal terms identify the provider as DocuPhase, LLC, doing business as onPhase.

Is onPhase an alternative to PDF.co?

It can be an alternative for invoice capture and business-process automation, but the products are not direct substitutes.

onPhase is a complete finance, payment, workflow, and document-management platform. PDF.co is a document-processing API.

Which is better for accounts-payable automation?

onPhase is the stronger choice when a finance team needs invoice capture, approvals, PO matching, ERP synchronization, payments, supplier services, and audit trails in one system.

PDF.co can power a custom AP workflow but does not supply every AP business function.

Which is better for invoice OCR?

onPhase combines AI capture with human-in-the-loop validation as part of its AP platform.

PDF.co provides AI Invoice Parser and Document Parser APIs for developers who want extracted data returned directly to their application.

Does PDF.co support three-way matching?

PDF.co can extract invoice and purchase-order data, but it is not a complete three-way-matching application.

The customer must compare the extracted data against purchase orders and receipts through an ERP or custom workflow.

Does onPhase make supplier payments?

Yes. onPhase supports supplier-payment workflows, including methods such as ACH, virtual cards, checks, and cross-border payments, depending on the selected services.

PDF.co processes documents and does not transmit supplier payments.

Does onPhase provide document management?

Yes. onPhase offers cloud document storage, indexing, OCR, full-text search, permissions, routing, and audit trails.

PDF.co is not intended to be the long-term document repository.

Can onPhase convert PDF to JPG or PNG?

PDF-to-image is not a primary onPhase product capability advertised as a general developer API.

PDF.co provides a purpose-built PDF-to-image API.

Can onPhase convert HTML or a webpage URL to PDF?

onPhase can generate records and documents within business workflows, but it is not positioned as a general HTML-to-PDF or webpage-capture API.

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

Does onPhase have an API?

onPhase supports API-based integrations as well as secure file transfer and direct system connections.

Access, documentation, and permitted uses should be confirmed during the sales and implementation process. PDF.co provides self-service REST API documentation.

Does onPhase publish pricing?

No standard public pricing is currently displayed. Prospective customers must request a demonstration and customized quote.

PDF.co publishes subscription pricing and a credit calculator.

Which product is easier to start with?

PDF.co is generally faster for a developer to test because it offers self-service API access.

onPhase requires a more consultative evaluation because it configures complete financial and operational processes.

Can PDF.co and onPhase be used together?

Yes. PDF.co can perform custom PDF conversion, manipulation, and extraction, while onPhase manages invoice approval, ERP integration, document storage, and payment.

Final Verdict

onPhase, formerly DocuPhase, is the stronger choice for organizations seeking a managed accounts-payable and finance automation platform. It handles the business process around the document: capture, validation, coding, matching, approvals, payments, storage, and ERP synchronization.

PDF.co is the stronger choice for developers and automation teams that need flexible document capabilities through an API. It handles the document itself: OCR, extraction, conversion, generation, editing, forms, barcodes, merging, splitting, and compression.

Choose onPhase when the objective is to transform how a finance team works.

Choose PDF.co when the objective is to add document-processing capabilities to an application or automation.

For workflows that need both, use onPhase as the financial system of process and PDF.co for specialized document transformations around it.

To evaluate PDF.co with your own documents, create a PDF.co account and review the available endpoints in the PDF.co API documentation.