Other PDF Issues

How to Fix Missing or Jumbled Text After Merging PDFs in Acrobat

Steven ParkerSteven Parker Nov 2, 2026 869 views

Question details

Users experience disappearing or jumbled text after merging and saving PDF files in Adobe Acrobat.

How to Fix Missing or Jumbled Text After Merging PDFs in Acrobat
Product
Adobe Acrobat
Device & OS
not provided
Scenario
Merging multiple PDF files into a single document.
Observed behavior
Letters and words disappear or become scrambled upon saving the merged PDF, often due to font corruption, problematic source files, or software glitches.
Before you start

Ensure you have the original, unmerged source PDFs available, as you may need to recreate the merged document from scratch to resolve deep-seated file or font corruption.

Solution 1Recommended

Recreate the Merged PDF and Update Acrobat

Starting fresh with original files and an updated version of Acrobat often clears temporary glitches and font conflicts.

Repeatedly editing or saving the same merged document can compound errors. Recreating the file ensures a clean slate.

1
Update Acrobat

Open Adobe Acrobat, navigate to the Help menu at the top, and select 'Check for Updates' to ensure you are running the latest version.

2
Use Original Files

Close the corrupted document. Go to Tools > Combine Files and select your original, unmodified source PDFs.

3
Save as a New Document

Once combined, go to File > Save As and give the document a completely new name rather than overwriting an existing file.

Recreate the Merged PDF and Update Acrobat
Testing the File: After saving, try opening the newly merged PDF in a different PDF viewer (like a web browser) to confirm the text renders correctly.

Merge PDFs Seamlessly Without Text Errors Using WPS Office

Avoid frustrating text rendering and font corruption issues by using WPS Office's built-in PDF tools to merge your documents quickly and accurately.

  1. 1. Open PDF Tools: Launch WPS Office and click on the 'PDF' tab on the main dashboard.
  2. 2. Select Merge PDF: Click on 'Merge PDF' from the available PDF processing options.
  3. 3. Add Files: Click 'Add Files' to import all the source PDF documents you wish to combine.
  4. 4. Merge and Save: Arrange the files in your desired order and click 'Merge' to generate a flawless combined PDF without text corruption.
Flawlessly merges PDF files without losing text or formatting.Highly compatible with Adobe PDF and Microsoft Office document formats.Lightweight software that runs smoothly on Windows, Mac, and mobile.Includes comprehensive PDF editing, converting, and annotating tools.
microsoft office alternative - wps office

Frequently Asked Questions

Why does text turn into weird symbols after combining PDFs?

This usually happens due to font conflicts or unembedded fonts in the source files. When merged, the PDF reader substitutes the missing fonts with default ones, which can result in jumbled or symbol-like text.

Can I recover the missing text from the corrupted merged PDF?

If the text is fundamentally corrupted in the saved merged file, it cannot be easily recovered. It is highly recommended to merge the document again using the original source files.

Does updating Adobe Acrobat fix PDF merging errors?

Yes, updating to the latest version of Acrobat can fix known bugs related to the PDF merging engine, font rendering conflicts, and background memory management.