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Flatten PDF Online
Lock form values, checkmarks, annotations, and signatures into the page content so they cannot be edited.
Instant Processing
Files Auto-Deleted in 1hr
SSL Encrypted Upload
Related Tools
Frequently Asked Questions
It merges interactive form fields, checkboxes, and text layers into the flat page background image/vector, making them un-editable.
How to use Flatten PDF Online
01
Upload your PDF
Drag and drop, paste from clipboard, or click to browse. Supports all PDF versions up to 50MB.
02
Configure settings
Adjust options as needed using the configuration panel.
03
Download your result
Instant processing. Download with one click — no watermark, no signup, files auto-deleted in 1 hour.