How to Fix Scrambled or Overlapping Digital Signature Text in Adobe Acrobat
Question details
Users experience scrambled or overlapping text within digital signatures created in Adobe Acrobat.

- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Creating or viewing a digital signature in a PDF document.
- Observed behavior
- The username and other text inside the digital signature appear garbled, scrambled, or overlap with each other, making the signature unreadable.
Ensure you have the necessary permissions to edit the PDF document and verify that your system has standard default fonts installed.
Recreate the Signature Appearance with Standard Fonts
Clearing custom settings and rebuilding the signature appearance with standard installed fonts often resolves rendering issues.
Overlapping text is commonly caused by custom fonts or corrupted appearance settings that Acrobat fails to render correctly. Recreating the signature using basic system fonts is the most reliable fix.
Open Adobe Acrobat. Navigate to 'Edit' > 'Preferences' on Windows, or 'Acrobat' > 'Preferences' on Mac. Select 'Signatures' from the Categories list on the left.
Under the 'Creation & Appearance' section, click the 'More' button to open the detailed appearance settings.
Select the problematic custom signature appearance and click 'Delete'. Click 'New' to create a fresh signature appearance, ensuring you use standard installed fonts like Arial or Helvetica instead of imported graphics or custom typefaces.
Save your settings, apply the newly created signature to your PDF document, and verify if the text now renders clearly without overlapping.

Update Software and Isolate the Issue
Updating your PDF reader ensures you have the latest bug fixes related to font rendering.
Add Clear, Error-Free Digital Signatures with WPS Office
Avoid scrambled text and font rendering issues by using WPS Office to sign your PDF documents. WPS PDF provides a seamless, standard-compliant signature tool that renders perfectly on any device.
- 1. Open your PDF: Launch WPS Office and open the PDF document you need to sign.
- 2. Navigate to the Signature Tool: Go to the 'Protect' tab or the 'Fill & Sign' feature in the top toolbar.
- 3. Create a New Signature: Click 'Sign' and choose to create a new signature. You can type, draw, or import an image.
- 4. Apply the Signature: Place the signature precisely where you want it on the document. WPS Office's native font support ensures perfect rendering.
- 5. Save the Document: Save your signed PDF. The signature will remain crisp and clear when viewed on any standard PDF reader.

Frequently Asked Questions
Why does my digital signature text overlap in PDF?
This usually happens due to font rendering errors, corrupted signature appearance settings, or missing fonts on the system viewing the PDF. Using standard system fonts instead of custom ones can resolve this.
Will the scrambled signature affect the validity of the document?
While the cryptographic validity of the digital signature remains intact as long as the certificate is valid, the visual scrambling can make the document look unprofessional and render the signer's details unreadable.
How do I change the font of my digital signature in Adobe Acrobat?
You can change the font by going to Preferences > Signatures > Creation & Appearance, then editing your signature appearance to use a standard text format instead of imported graphics or custom fonts.
Can I fix an already signed PDF with overlapping text?
Once a PDF is digitally signed, its contents are cryptographically locked. To fix the visual appearance, you must recreate your signature with corrected settings and sign a fresh, unsigned copy of the document.




