PDF Conversion Issues

How to Fix Ligature Characters Like "st" When Converting Web to PDF

Natalie TaylorNatalie Taylor Oct 28, 2026 869 views

Question details

The user wants to prevent or correct the "st" letter combination from changing into a typographic ligature ("st") during a web-to-PDF conversion.

How to Fix Ligature Characters Like "st" in PDF Conversions
Product
PDF Editor / Web Browser
Device & OS
not provided
Scenario
Converting a webpage with specific fonts into a PDF document.
Observed behavior
The letters "s" and "t" merge into the single typographic ligature character "st" in the resulting PDF file.
Before you start

Ensure you have a capable PDF editing program installed to make text modifications, and try to identify which specific font on the original webpage is causing the ligature issue.

Solution 1Recommended

Change the Browser or Web Page Font

Prevent ligatures during the initial conversion stage by using a different browser or adjusting the web font.

Different web browsers use different rendering engines when printing or saving a webpage to PDF. Switching to an alternative browser can sometimes prevent ligatures from generating.

Alternatively, if you have access to modify the page or use developer tools, changing the font temporarily can eliminate the ligature entirely.

1
Try an alternative browser

Open the affected webpage in a different web browser, such as Google Chrome, Microsoft Edge, or Mozilla Firefox.

2
Re-convert to PDF

Use the browser's built-in "Print to PDF" or "Save as PDF" feature to see if the ligatures still appear in the new document.

3
Adjust the webpage font

If the issue persists, you can use the browser's developer tools (F12) to inspect the text and temporarily change the CSS font-family to a standard font like "Noto Sans" or "Noto Serif" before saving.

Change the Browser or Web Page Font
Edit PDF Text Easily

Fix PDF Formatting and Ligatures with WPS Office

WPS Office provides a powerful PDF editing suite that allows you to directly modify text, change fonts, and correct unwanted ligatures in your converted PDF documents effortlessly.

  1. 1. Open your file: Launch WPS Office and open the PDF containing the ligature issues.
  2. 2. Enter Edit Mode: Navigate to the "Edit" tab on the top ribbon and click on "Edit Text".
  3. 3. Select the incorrect character: Click on the text block and highlight the unwanted ligature (e.g., "st").
  4. 4. Correct the text: Type the correct "s" and "t" characters, adjust the font style if necessary, and save your document.
Directly edit text and correct formatting errors in PDFsSeamlessly change document fonts to resolve typographic ligature issuesFully compatible with standard PDF formats and Adobe Acrobat filesLightweight application with a comprehensive suite of PDF conversion tools
microsoft office alternative - wps office

Frequently Asked Questions

Why do the letters "s" and "t" combine into one character when making a PDF?

This happens because of typographic ligatures, a design feature in certain fonts where specific letter combinations are joined for aesthetic purposes. When converting to PDF, the rendering engine may automatically apply these ligatures based on the original font's properties.

Can I turn off ligatures in my browser before converting a webpage to PDF?

Yes. If you use browser developer tools (usually accessed by pressing F12), you can inject a CSS rule like 'font-variant-ligatures: none;' into the webpage's body style before printing or saving as PDF to prevent the characters from merging.

Does changing the font fix ligature issues in a PDF?

Yes. Switching the text font to standard, web-safe fonts like Noto Sans, Arial, or Noto Serif usually resolves the issue. These standard fonts often do not enforce complex ligatures, allowing the PDF rendering tool to process the letters individually.

Why can't I edit the ligature text in my default PDF reader?

Standard PDF readers are designed primarily for viewing documents and applying basic annotations. To alter the actual text content and replace ligatures, you must use a dedicated PDF editing application that supports full text manipulation.