PDF Conversion Issues

How to Fix DocuSign PDF Checkboxes Disappearing When Faxed or Uploaded

John WilsonJohn Wilson Oct 22, 2026 868 views

Question details

User needs to ensure selected checkboxes in a DocuSign PDF remain visible when the file is faxed or uploaded to third-party services.

How to Fix DocuSign PDF Checkboxes Disappearing When Faxed or Uploaded
Product
DocuSign PDF
Device & OS
not provided
Scenario
Faxing a completed DocuSign form through services like RingCentral or uploading it to a provider website.
Observed behavior
Checkboxes display correctly in the locally saved PDF file but disappear once the file is transmitted via fax or uploaded online.
Before you start

Ensure you have downloaded the final, completed version of your DocuSign PDF to your local device before attempting to flatten or transmit it.

Solution 1Recommended

Flatten the PDF by Printing to a New PDF Document

The most reliable way to ensure form fields like checkboxes become permanent parts of the document is to 'Print to PDF'.

Interactive form fields or annotation layers in DocuSign PDFs may not be fully supported by fax services like RingCentral or older website upload portals. Printing the document to a new virtual PDF flattens these interactive layers into a single, uneditable image.

1
Open the PDF

Open your completed DocuSign PDF in any standard PDF reader or web browser.

2
Open Print Dialog

Press Ctrl + P (Windows) or Cmd + P (Mac) to open the print dialog interface.

3
Select PDF Printer

In the 'Printer' or 'Destination' drop-down menu, select 'Microsoft Print to PDF', 'Save as PDF', or a similar virtual PDF printer instead of a physical printer.

4
Save the Flattened File

Click 'Print' or 'Save'. Choose a location on your computer to save this new flattened version of the PDF, then use this new file for your fax or upload.

Flatten the PDF by Printing to a New PDF Document
Checkboxes Preserved: The new PDF will have all form fields permanently merged into the document, preventing them from disappearing during any future transmission.
Professional PDF Editor

Flatten PDFs Easily with WPS Office

WPS Office provides robust PDF tools that allow you to easily manage, flatten, and print PDF forms to ensure checkboxes and signatures remain visible across all platforms.

  1. 1. Open the Document: Launch WPS Office and open your downloaded DocuSign PDF file.
  2. 2. Access the Print Menu: Click on the 'Menu' button in the top left corner and select 'Print', or use the keyboard shortcut Ctrl + P.
  3. 3. Choose Export to PDF: Select 'WPS PDF' from the printer drop-down list in the print dialog.
  4. 4. Save the Flattened File: Click 'Print' to save a new, flattened copy of your PDF where checkboxes are permanently embedded and visible.
Easily flatten interactive PDF forms and annotations with one click.Print to PDF with high fidelity to preserve checkboxes and text fields.Fully compatible with standard PDF formats and Microsoft Office files.Lightweight, fast, and free to use for viewing, printing, and converting PDFs.
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Frequently Asked Questions

Why do checkboxes disappear when uploading a PDF?

Checkboxes in electronic signatures (like DocuSign) are often created as interactive form fields or overlay annotations. If the receiving system (like a fax service or upload portal) doesn't support these interactive layers, it only reads the base document, causing the checkboxes to vanish.

What does it mean to flatten a PDF?

Flattening a PDF means merging all separate layers—such as interactive form fields, signatures, and annotations—into a single, uneditable image layer. This ensures the document looks identical across all devices and software without relying on interactive features.

Can I edit a PDF after it has been flattened?

No, once a PDF is flattened, the interactive elements like checkboxes or text fields become part of the static document background and can no longer be edited. Always keep a backup of the original unflattened file if you might need to make changes later.