Fix Garbled or Unreadable PDF Text on Different Computers
Question details
Users are experiencing garbled or unreadable text when viewing a PDF on certain computers, while it displays perfectly on others.
- Product
- PDF Viewer
- Device & OS
- Windows
- Scenario
- Viewing a shared PDF document across multiple computers.
- Observed behavior
- Text renders as garbled, gibberish, or unreadable symbols on some PCs, despite having identical OS and PDF reader updates as the working PCs.
Ensure that you have access to the original source file (such as the Word or Excel document) or a way to contact the document creator, as fixing this issue properly often requires recreating the PDF.
Embed All Fonts During PDF Creation
The most reliable way to prevent garbled text is to embed all fonts directly into the PDF document when exporting or saving it.
When a font is not embedded in a PDF, the PDF reader attempts to use a local system font instead. If the exact font is missing from the computer, it substitutes it incorrectly, leading to garbled text.
Open the affected PDF in your reader, go to 'File' > 'Properties', and click the 'Fonts' tab. Look for '(Embedded)' next to the font names.
If fonts are missing, open the original document in its native application (e.g., Word, Excel, or PowerPoint).
Go to the 'Save As' or 'Export' menu, select PDF format, and find the 'Options' or 'Preferences' button.
Check the option that says 'Embed fonts in the file' or ensure you are using a PDF maker that embeds fonts by default. Save and share the new PDF.
Install the Missing Fonts on the Viewing Computer
If you cannot recreate the PDF, installing the required fonts on the computer showing garbled text may resolve the display issue.
Create and View PDFs Flawlessly with WPS Office
WPS Office provides an advanced built-in PDF reader and creator that automatically manages font embedding to ensure your documents look exactly the same on any device.
- 1. Open source file: Open your original source document (Word, Excel, or PowerPoint) in WPS Office.
- 2. Export to PDF: Click on 'Menu' in the top-left corner and select 'Export to PDF'.
- 3. Verify settings: In the export dialog window, ensure your settings are optimized for high-quality printing or standard distribution.
- 4. Save the file: Click 'Export' to generate a universally compatible PDF file with proper font handling.
Frequently Asked Questions
Why does my PDF look like gibberish symbols on another PC?
This happens when the PDF relies on a specific font installed on your computer, but that font wasn't embedded into the PDF file. When opened on another PC that lacks this font, the PDF reader substitutes it with an incorrect one, causing the text to appear as gibberish.
How do I check if fonts are embedded in my PDF?
Open the PDF in your reader (such as Acrobat Reader or WPS PDF), go to 'File' > 'Properties', and select the 'Fonts' tab. Every font listed should ideally have '(Embedded)' or '(Embedded Subset)' written next to its name.
Can I embed fonts into an already created PDF?
Generally, you need professional PDF editing software to run a 'Preflight' or 'Fixup' profile to embed fonts into an existing PDF. The easiest and free method is to re-export the PDF from the original source file with embedding enabled.
Does updating my PDF reader fix the garbled text?
Not necessarily. If the issue is caused by missing fonts inside the PDF document itself, updating the PDF reader or Windows OS will not resolve the problem. The fonts must either be installed locally on the computer or embedded in the file.
