Fix Adobe Acrobat DC Freezing When Using Pick Function in Prepare Form
Question details
The user experiences application freezing and data loss when trying to set up form field calculations using the Pick Function in Adobe Acrobat.

- Product
- Adobe Acrobat DC Pro
- Device & OS
- not provided
- Scenario
- Editing form field properties and attempting to configure calculations using the Pick Function within the Prepare Form tool.
- Observed behavior
- Adobe Acrobat freezes completely when the Pick Function is selected on the Calculate tab, causing any unsaved form editing progress to be lost.
Verify that you are attempting to calculate a supported field type, as the Calculate tab functions properly only for text fields and drop-down boxes.
Repair the Adobe Acrobat Installation
Use the built-in repair tool to fix corrupted application files or missing dependencies that cause the software to freeze during form editing.
Software updates or system changes can sometimes corrupt Acrobat's installation files, leading to instability when using advanced features like form calculations. Running the built-in repair tool restores these essential files without affecting your saved documents.
Save and close any active PDF files to ensure the repair process has full access to Acrobat's system files.
Click on 'Help' in the top menu bar of the Adobe Acrobat DC Pro application.
Select 'Repair Installation' from the drop-down menu and confirm the prompt to begin the repair process.
Once the repair is complete, restart your computer, open Adobe Acrobat, and test the Pick Function on the Calculate tab again.
Verify Form Field Compatibility
Ensure you are applying the Pick Function to a supported form field type to prevent application errors.
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Frequently Asked Questions
Why does the Calculate tab not appear in my PDF form properties?
The Calculate tab is natively restricted to specific form elements. It will only appear in the Properties dialog if you are configuring a text field or a drop-down box.
Are there alternatives to using the Pick Function for calculating fields in PDF?
Yes. Instead of the Pick Function, you can use 'Simplified field notation' to write basic math equations, or select 'Custom calculation script' to write JavaScript for more complex and stable form calculations.
How can I prevent losing my form editing work if Acrobat freezes again?
You can mitigate data loss by enabling Auto-Save. Go to Edit > Preferences > Documents, and check 'Automatically save document changes to temporary file every X minutes'. Additionally, manually save (Ctrl+S or Cmd+S) before opening the Calculate tab.




