How to Create Bilingual Language Prompts in a PDF Form
Question details
The user needs to display either English or French instructions when clicking an information button in a bilingual PDF form, avoiding oversized alert dialogs.

- Product
- Device & OS
- not provided
- Scenario
- Creating an interactive bilingual PDF form that provides localized user instructions dynamically upon request.
- Observed behavior
- The goal is to present concise, localized prompt messages to the user without disrupting the form-filling experience with large, intrusive alert boxes.
Ensure you have access to a PDF editing tool that supports interactive form fields and JavaScript execution, as basic PDF viewers cannot configure these dynamic actions.
Use a JavaScript Popup Menu for Language Selection
Implement a JavaScript popup menu tied to an information button, allowing users to select a language and instantly view the corresponding instructions in a compact format.
A popup menu is an elegant alternative to an alert dialog. It allows you to embed both the language choices and the short instructional text directly into the menu structure.
Open your PDF in an advanced PDF editor, navigate to the form editing tools, and add a 'Push Button' field to your document.
Right-click the newly created button and select 'Properties'. Go to the 'Actions' tab.
Set the trigger to 'Mouse Up' and the action to 'Run a JavaScript'. Enter the following code to create your menu: app.popUpMenu(["English", "English instructions"], ["French", "Instructions en français"]);
Close the properties window, exit form editing mode, and click the button to verify that the popup menu appears with the localized text options.

Set Document-Level Language Preferences with Radio Buttons
Add global language selection radio buttons at the beginning of the form so the document inherently knows which language prompts to display.
Easily Create Interactive PDF Forms with WPS Office
WPS Office offers a comprehensive suite of PDF tools that make it simple to design interactive forms, insert buttons, and manage field properties for dynamic bilingual documents.
- 1. Open the PDF: Launch WPS Office and open your bilingual PDF document.
- 2. Navigate to Form Controls: Click on the 'Form' tab on the top ribbon to access the interactive form creation tools.
- 3. Insert Form Fields: Select the 'Push Button' or 'Radio Button' tools and draw the fields directly onto your document.
- 4. Edit Properties: Double-click the inserted field to open the Properties pane, where you can define tooltips, appearances, and specific interactive actions.

Frequently Asked Questions
Why should I use a popup menu instead of a standard alert dialog in my PDF?
Standard JavaScript alert dialogs can appear oversized, intrusive, and out of place in a designed document. A popup menu offers a much more compact, seamless way to display brief language options and instructions without disrupting the user's workflow.
Can I show the language prompt only the first time a user clicks the button?
Yes. You can use a document-level JavaScript variable to track whether the language selection prompt has been shown. Once it has been displayed and a selection made, the script can skip the popup menu and directly display the relevant text on subsequent clicks.
Are JavaScript form features supported by all PDF viewers?
While standard interactive form fields are widely supported, advanced JavaScript executions (like dynamic popups) generally require robust PDF software. Users should open the form in fully-featured programs like WPS Office or Adobe Acrobat for the best experience.




