PDF Opening Issues

Fix PDF Characters Rendering Incorrectly in Acrobat Reader on Android

Camila MilosovichCamila Milosovich Oct 27, 2026 869 views

Question details

Specific text, such as numbers and letters, fails to display properly in a PDF document on a mobile device.

How to Fix PDF Characters Rendering Incorrectly on Android
Product
Acrobat Reader
Device & OS
Android
Scenario
Viewing an important document, such as a travel certificate, on an Android mobile application.
Observed behavior
Some characters appear partially rendered, distorted, or missing, while the remaining text displays normally.
Before you start

Before proceeding, take a clear screenshot of the incorrectly rendered text so you have a record of the issue for troubleshooting or support requests.

Solution 1Recommended

Test the PDF with an Alternative Viewer

Opening the file in a different application helps determine if the rendering issue is caused by the document itself or a bug in your current PDF reader.

Different PDF applications use different rendering engines. If a file displays poorly in one app but perfectly in another, the issue lies with the original app's software rather than a corrupted document.

1
Install a new PDF reader

Open the Google Play Store and download a reliable alternative application like WPS Office.

2
Locate the file

Open your Android device's file manager and navigate to the folder containing your PDF document.

3
Open with the new app

Tap on the PDF file and choose your newly installed PDF viewer from the 'Open with' prompt to check if the text renders correctly.

Test the PDF with an Alternative Viewer
Isolate the Problem: If the text displays perfectly in the alternative viewer, you can safely continue reading your document without waiting for an app patch.
Reliable PDF Reader

Read and Render PDFs Flawlessly with WPS Office

If your current PDF app struggles to display text and fonts correctly on Android, switch to WPS Office. It features a highly compatible rendering engine that ensures all characters, images, and formatting display exactly as intended.

  1. 1. Download WPS Office: Search for WPS Office in the Google Play Store and install the application on your Android device.
  2. 2. Open the PDF module: Launch the WPS Office app and tap on the 'PDF' tab on the home screen.
  3. 3. Select your document: Browse your local device storage and tap on your travel certificate or PDF file to open it.
  4. 4. View without errors: Scroll through your document and verify that all numbers and letters are now rendering correctly.
Accurate text and embedded font rendering on all mobile devicesFully compatible with standard Microsoft Office and PDF file formatsLightweight and optimized for fast document loading on AndroidIncludes comprehensive free tools for annotating and editing PDFs
microsoft office alternative - wps office

Frequently Asked Questions

Why are some letters missing or distorted in my mobile PDF?

This generally happens when the fonts used to create the document are not properly embedded in the PDF file, or if your specific mobile PDF reader has a software bug preventing it from processing the character encoding correctly.

Will clearing the app cache fix PDF text display issues?

It can help if temporary files have become corrupted. You can clear the cache by navigating to Android Settings > Apps > your PDF reader > Storage, and tapping 'Clear Cache'. Afterwards, reopen the app to see if the text renders properly.

How do I know if the PDF file itself is damaged?

The easiest way to check for file damage is to open the PDF on a completely different device, such as a desktop computer. If the characters are still missing or corrupted on a PC, the file was likely exported incorrectly and needs to be regenerated by the sender.