How to Add a Do Not Show Again Option to Adobe Acrobat Alerts
Question details
The user needs to add a 'Do Not Show Again' checkbox to a JavaScript alert in Adobe Acrobat to prevent repetitive pop-up messages.
- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Configuring interactive PDF forms or documents where custom JavaScript alerts are repeatedly triggered, requiring an opt-out mechanism for users.
- Observed behavior
- Currently, the JavaScript alert triggers every time the script runs. The desired state is to conditionally suppress the alert based on whether the user previously selected the checkbox.
Ensure you have Adobe Acrobat Pro installed with access to the JavaScript editor, and verify that your document has permission to execute document-level scripts.
Implement the app.alert Checkbox with Document-Level Variables
Utilize the built-in checkbox feature of the Acrobat app.alert method and write logic to store the user's preference in the document.
Adobe Acrobat's `app.alert` method has an optional parameter to display a checkbox within the alert window. However, the alert will not automatically stop appearing just because the box is checked. You must capture the checkbox's state when the user closes the alert and store it in a document-level variable or a hidden form field so the PDF 'remembers' the choice.
Navigate to 'Tools' > 'JavaScript' > 'Document JavaScripts'. Create a new script to initialize a tracking variable, such as `var bShowMyAlert = true;`.
In your trigger script, structure the `app.alert` method to include the checkbox. Use the `nCheckbox` parameter to enable the 'Do not show this message again' option.
Assign the `app.alert` execution to a variable (e.g., `var alertResult = app.alert(...);`). The method returns an object containing the state of the checkbox.
Wrap your alert in an `if (bShowMyAlert)` statement. Inside this block, check if `alertResult.bCheckbox` is true. If it is, update your variable to `bShowMyAlert = false;` so the alert is bypassed next time.
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Frequently Asked Questions
Why does the Acrobat alert still appear after checking 'Do Not Show Again'?
If the alert continues to appear, your script is likely displaying the checkbox but failing to save its state. You must capture the checkbox's return value and implement logic to bypass the `app.alert` command on subsequent runs.
Can I save the checkbox state permanently even after closing the PDF?
Yes, but standard JavaScript variables reset when a document is closed. To permanently save the state, you need to write the user's choice to a hidden form field or document data value, and the user must save the PDF file before closing.
Is the app.alert checkbox supported in all PDF viewers?
No, the `app.alert` method and its custom checkbox parameters are primarily specific to Adobe Acrobat and Adobe Reader. Other third-party PDF viewers or browser-based PDF readers may ignore the checkbox parameter or fail to execute the JavaScript entirely.
