How to Add Tamil Text in Fillable PDF Text Fields
Question details
The user needs to enter Tamil characters into a text field within a fillable PDF document.

- Product
- Device & OS
- not provided
- Scenario
- Filling out an interactive PDF form that requires responses in the Tamil language.
- Observed behavior
- The user is seeking the correct method to successfully type and render Tamil text inside standard PDF text fields without encountering input or compatibility errors.
Ensure that your device has a Tamil keyboard installed and enabled, and verify that the PDF document is not password-protected or restricted against form filling.
Configure Input Settings and Fill the PDF Directly
Ensure your system input method supports Tamil and that the PDF form allows editing.
Most modern operating systems allow you to add regional language keyboards. Once the keyboard is configured, you can type directly into compatible PDF text fields.
Navigate to your device's keyboard or language settings and add 'Tamil' as an active input method.
Launch your preferred PDF reader app and open the fillable PDF document.
Review the document properties or security settings to confirm that form filling is allowed and the file is not marked as read-only.
Click on the designated text field, switch your system keyboard layout to Tamil, and begin typing your information.

Use the Copy and Paste Method
If direct typing is not rendering correctly in your PDF app, you can draft your text externally.
Easily Fill Out Multilingual PDFs with WPS Office
WPS Office includes a powerful, built-in PDF editor that handles interactive fillable forms effortlessly. With full support for system keyboards, typing in regional languages like Tamil is smooth and your document formatting is preserved.
- 1. Open WPS Office: Download and launch WPS Office, then open your fillable PDF file.
- 2. Locate the form field: Scroll to the page containing the interactive text fields you need to fill.
- 3. Select the field: Click or tap directly inside the text field to activate the cursor.
- 4. Type in Tamil: Switch your system keyboard to Tamil and type the required information.
- 5. Save the document: Click the 'Save' icon to ensure your filled data is securely stored in the PDF.

Frequently Asked Questions
Why do Tamil characters appear as square boxes in my PDF text fields?
This usually happens if the PDF viewer application does not have access to a system font that supports Tamil characters. Try using a robust PDF editor like WPS Office or installing a standard Unicode Tamil font on your device.
How do I know if my PDF form is protected against typing?
Open the PDF properties or document security settings in your PDF reader. If 'Filling of form fields' or 'Editing' is marked as 'Not Allowed', the document has been restricted by its author and cannot be filled without the appropriate permissions or password.
Can I type Tamil in PDFs on a mobile device?
Yes, as long as you are using a mobile PDF reader app that supports interactive form filling and you have enabled a Tamil keyboard (such as Gboard) in your smartphone's system language settings.




