How to Fix Garbled Text and Font Issues in PDF Files
Question details
The user needs to resolve an issue where text in a PDF file appears as garbled characters or incorrect symbols instead of the intended fonts like Arial.
- Product
- Device & OS
- not provided
- Scenario
- Opening or viewing a PDF document where the original fonts are not properly embedded, missing, or the internal font-mapping table is damaged.
- Observed behavior
- The text in the PDF displays garbled characters or substitutes the intended font (e.g., Arial) with another unexpected font (e.g., Ayuthaya).
Check if you have the original source document (such as a Word file) available, as fixing this issue usually requires recreating the PDF with proper font embedding settings.
Recreate the PDF with Embedded Fonts from the Original Document
The most reliable way to fix garbled PDF text is to recreate the file from the original Word document while ensuring all fonts are fully embedded.
A damaged PDF cannot simply be "fixed" if the internal font dictionaries are corrupted. Re-exporting from the original source file ensures a clean font-mapping table and embeds the required fonts directly into the document so it can be viewed accurately on any device.
Locate and open the original source file (such as a Microsoft Word document) that was used to create the PDF.
Navigate to the file export or 'Save As' menu. Select PDF as the format and look for an 'Options' or 'Preferences' button to access advanced settings.
Check the box that says 'Embed fonts in the file' or similar options provided by your PDF maker. Click 'OK' and export the document to generate a new PDF.
Install the Missing Font on Your System
If the PDF doesn't have the font embedded and you cannot recreate the file, installing the required font locally on your device may resolve the display issue.
Prevent Garbled Text by Exporting PDFs with WPS Office
WPS Office provides a robust PDF converter that handles font embedding natively. By using WPS Office to create your PDFs, you ensure that fonts, layouts, and characters are flawlessly preserved and readable on any device.
- 1. Open the document in WPS Office: Launch WPS Office and open the original Word, Excel, or PowerPoint document.
- 2. Select Export to PDF: Click on the 'Menu' button in the top left corner and select 'Export to PDF'.
- 3. Adjust settings and export: In the export dialog, ensure that the font embedding options are optimized for high quality, and click 'Export' to create a perfect, readable PDF.
Frequently Asked Questions
Why does my PDF look like symbols or gibberish?
This usually happens due to missing font embedding or corrupted font dictionaries in the PDF file. If the system opening the PDF doesn't have the required font installed and it isn't embedded, the PDF viewer will substitute it with another font, causing the text to look garbled.
Can I fix a garbled PDF without the original document?
It is highly difficult to repair a PDF with broken font-mapping tables without the original document. Your best option is to install the missing fonts locally on your computer, but if the internal mapping is severely damaged, you must recreate the PDF from the source file.
Why does the PDF say it uses Arial but displays a different font?
A PDF might declare a font like Arial in its properties but fail to display it if the font wasn't properly embedded during creation, or if a software glitch mapped the Arial text to another font like Ayuthaya internally.
How do I check if fonts are embedded in my PDF?
Open your PDF in a standard PDF reader, go to File > Properties, and select the 'Fonts' tab. This section will list all fonts used in the document and indicate whether they are 'Embedded' or 'Embedded Subset'.
