Fix Greek and Non-Latin Characters Disappearing in PDF Forms
Question details
Greek and other non-Latin characters vanish from PDF form fields after saving and reopening the document, whereas standard Latin characters remain intact.

- Product
- Adobe Acrobat Online
- Device & OS
- not provided
- Scenario
- Filling out an online PDF form using non-Latin (e.g., Greek) characters and saving the file to the device.
- Observed behavior
- The typed non-Latin characters are visible during data entry but disappear entirely after the PDF form is saved and reopened.
Before troubleshooting, ensure you have saved a backup copy of the original blank PDF form and verify that your browser or PDF viewer is updated to its latest version.
Fill and Save the Form Using a Desktop PDF Application
Online PDF viewers and web browsers often struggle with complex font embedding and non-Latin character encoding. Using a dedicated desktop application resolves most encoding issues.
Browser-based PDF fillers sometimes use local temporary fonts to display text during input, but fail to embed these fonts into the document's code when saving. Switching to a desktop program bypasses this limitation.
Instead of filling out the form directly in your web browser, click the download icon to save the blank PDF file to your local computer.
Launch a dedicated desktop PDF editor, such as Adobe Acrobat Reader or WPS Office, and open the downloaded form.
Enter the Greek or non-Latin characters into the form fields, then go to 'File' > 'Save As' to securely save the document with the filled data.

Modify the Form Field Font Properties
If you are the creator of the PDF form or have editing privileges, changing the field font to a standard Unicode font can resolve character loss.
Easily Fill and Save PDF Forms with WPS Office
Avoid browser-based encoding issues by using WPS Office to fill out your PDF forms. WPS Office provides robust Unicode support, ensuring that Greek, Cyrillic, and other non-Latin characters are correctly saved, embedded, and displayed.
- 1. Open the PDF: Launch WPS Office on your computer, click on 'PDF', and select 'Open' to load your downloaded blank PDF form.
- 2. Fill the Form: Click directly on the interactive form fields and type your non-Latin text. WPS Office will automatically render the correct glyphs.
- 3. Save the Document: Click the 'Save' icon in the top left corner or press Ctrl+S to save the filled form securely to your device with all formatting intact.

Frequently Asked Questions
Why do non-Latin characters disappear only after saving the PDF?
This typically happens due to font embedding issues or browser-based PDF viewers lacking full Unicode support. While the browser can temporarily render the typed characters using system fonts, it fails to encode and embed them properly into the actual PDF file when saving.
Can I fix this issue without installing a desktop app?
You can try using a different web browser, clearing your browser cache, or using an alternative online PDF filler. However, desktop PDF applications generally provide much more reliable character encoding for non-Latin scripts.
Which fonts should I use for Greek characters in PDF forms?
It is best to use universally supported Unicode fonts such as Arial, Times New Roman, or Helvetica. These fonts contain the necessary glyphs for Greek and other non-Latin scripts, significantly reducing the risk of disappearing text.




