Fix Fillable PDF Fields Missing When Sent to Recipients
Question details
The sender created a PDF with fillable fields and signature blocks, but recipients receive it as a static, non-interactive document.

- Product
- Device & OS
- not provided
- Scenario
- Sending an interactive PDF form to recipients for filling and signing.
- Observed behavior
- The interactive form fields and signature blocks disappear or become static and uneditable when the recipient opens the file.
Ensure you still have access to the original, editable version of your PDF form on your local drive before attempting to resend or modify the document.
Send the Original Interactive PDF and Avoid Flattening
Ensure that the file sent is the original fillable form and hasn't been accidentally flattened by 'Print to PDF' features.
A common mistake when sharing interactive PDFs is using the 'Print to PDF' function to save the file. This process 'flattens' the document, permanently converting all interactive fields, checkboxes, and signature blocks into standard, uneditable text and graphics.
Open the original PDF document on your computer using your primary PDF editor and click on the form fields to ensure they are still interactive.
Navigate to 'File' and select 'Save As'. Choose standard PDF format and save it to your local drive. Do not select 'Print' or 'Microsoft Print to PDF'.
Attach this newly saved, confirmed interactive copy to your email and send it to the recipients.

Advise Recipients to Use a Dedicated PDF Reader
Ensure the recipient is opening the file in a program that fully supports PDF form fields, as many default viewers do not.
Use WPS Office to Create, Fill, and Share PDF Forms
WPS Office provides a comprehensive PDF toolkit that fully supports interactive form fields, checkboxes, and signatures. It ensures your forms remain fillable and intact when sharing with others, eliminating compatibility issues.
- 1. Open your PDF form: Launch WPS Office and open your interactive PDF document.
- 2. Fill or edit fields: Navigate to the 'Form' tab to interact with the text fields, checkboxes, or signature blocks.
- 3. Save the document securely: Press Ctrl+S or go to 'Menu' > 'Save As' to preserve all interactive elements without flattening the file.
- 4. Share with recipients: Use the built-in share feature to send the document via email directly from within WPS Office.

Frequently Asked Questions
Why does my fillable PDF turn into a regular PDF when saved?
This usually happens if you use the 'Print to PDF' function instead of 'Save' or 'Save As'. Printing to PDF flattens the document, converting all interactive form fields into static text and visual graphics.
Can recipients fill out a PDF form on their mobile phones?
Yes, provided they use a mobile PDF reader app that supports interactive forms, such as the WPS Office mobile app or Acrobat Reader. Default mobile viewers or email previewers might only display the static, uneditable file.
How can I lock a PDF form after it has been filled out?
To prevent further editing, you can intentionally flatten the PDF by selecting the 'Print to PDF' option when saving, or you can apply document security restrictions in your PDF editor to require a password for any future modifications.




