PDFlock form fieldsPDF
Lock PDF Form Fields
Make all PDF form fields read-only while preserving their current values and interactive field definitions.
Add PDF file
Drag and drop one PDF here, or choose a PDF from your device.
Tip: Read-only fields remain recognizable as form controls, but compatible PDF readers will not allow their values to change.
PDF Tools
Lock PDF form fields online
Protect completed form values from casual editing without flattening the document.
Read-only controls
Enable the read-only flag on every interactive field.
Values preserved
Keep entered text and selected options unchanged.
Reversible
Use Unlock PDF Form Fields when editing is needed again.
One PDF output
Download one read-only form PDF.
Related tools