Fix Signature Fields Moving or Resizing in PDF for Multiple Signers
Question details
The user needs to troubleshoot why PDF signature and form fields shift position or resize during a multi-signer routing process.

- Product
- Device & OS
- not provided
- Scenario
- Sending a PDF document for e-signatures to multiple recipients sequentially.
- Observed behavior
- Signature and form fields unexpectedly move, change size, or drop to the bottom of the page after a recipient signs the document.
Make sure to save a backup copy of your original unsigned PDF before testing new workflows or adjusting form field properties.
Isolate the Document and Signature Workflow
Documenting the exact steps and isolating the file helps determine if the issue is a software bug or a document-specific corruption.
When multiple signers interact with a PDF, discrepancies in viewer software or routing methods can cause fields to shift. Isolating the workflow helps identify exactly when and why the failure occurs.
Note the exact step-by-step process used to send the document, including the platform used and how recipients and fields are assigned.
Take screenshots or record your screen to show the exact size and placement of the fields before and after each signer interacts with the file.
Create a brand new, simple PDF with test signature fields and send it through the exact same workflow to see if the issue replicates.
If you are working with a support team, attach the specific problematic PDF file and the screen recordings so they can replicate the behavior on their end.

Lock Form Fields Before Routing
Locking the form fields in the PDF properties prevents recipients' software from accidentally altering the field dimensions.
Use WPS PDF for Stable and Secure Document Signing
Avoid formatting glitches and shifting fields by using WPS PDF. It offers a robust 'Fill & Sign' feature that ensures your signatures and form fields stay exactly where you put them, maintaining perfect compatibility across different devices and signers.
- 1. Open your PDF: Launch WPS Office and open your PDF document.
- 2. Access signature tools: Navigate to the 'Fill & Sign' or 'Protect' tab on the top ribbon menu.
- 3. Create and place signature: Click 'Sign' to draw, type, or insert an image of your signature, then click to place it securely on the document.
- 4. Save the document: Save the signed PDF. WPS ensures the signature is properly embedded without altering other document elements.

Frequently Asked Questions
Why do my PDF form fields shift when opened on different computers?
This often happens if the PDF relies on dynamic XFA forms, or if the recipient is using a third-party PDF viewer that does not strictly adhere to standard PDF formatting rules, causing fields to render improperly.
How can I prevent other signers from modifying my fields?
When applying a digital certificate signature, look for an option to 'Lock document after signing'. This prevents subsequent recipients from altering form fields or making changes to the document structure.
Does flattening a PDF help with shifting signature fields?
Yes. If you do not need the fields to remain interactive for further input, flattening the PDF merges all visual elements into the base document layer, ensuring that signatures and text can no longer be moved or resized.




