Process New Box PDFs with PDF.co and Zapier
Automatically send new PDFs from Box to PDF.co, add a signature image, and save the updated files back to Box. This adds a visible image, not a certificate-based digital signature.
You’ll need Box, Zapier, and PDF.co accounts, a sample PDF, and a direct download URL for your signature image.
Step 1: Set Up the Box Trigger
Create a Zap and select Box → New File.
Connect your Box account and select the folder containing incoming PDFs. Use a dedicated PDF folder for this workflow.
Test the trigger and select a sample PDF.
Step 2: Configure PDF.co
Add PDF.co → Add Image to PDF and connect your PDF.co account through the OAuth sign-in window.
Complete these settings:
- Source File URL: Map the File output from Box.
- Image URL: Enter the direct download URL of the signature image.
- X Coordinate and Y Coordinate: Enter the image’s position.
- Width and Height: Set the image’s display dimensions.
- Pages: Enter
0for the first page.
Use PDF Inspector to find the placement coordinates. See the Add Image action documentation for configuration details.
Step 3: Test the Updated PDF
Test the PDF.co action and open the returned url.
Check that the signature image appears on the correct page and that its position and size are suitable. Adjust the settings if necessary.
Step 4: Save the Result to Box
Add Box → Upload File and configure:
- Folder: Choose a separate output folder to prevent processed files from triggering the Zap again.
- File: Map the url returned by PDF.co.
- Name: Enter an output filename, such as
processed-document.pdf. - Share this file?: Choose the appropriate access setting.
Test the upload and check the saved PDF in Box. This preserves the result beyond PDF.co’s temporary output URL.
Publish your Zap to process new PDFs automatically.
In this tutorial, we learned how to set up a New File trigger in Box. We also learned how to access this new file in PDF.co. And last but not the least, we learned how to upload the file back to Box.
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