Flatten Your PDF to Make It Uneditable

Merge all interactive elements—like form fields, comments, and signatures—into a single, static layer. This locks the document and prevents further edits.

Flatten PDF Now How it works
Pro tip: Flatten PDFs before sending them for final review or printing to ensure everyone sees the exact same version, with no missing fonts or broken fields.
Processed
+215,000 files
Rating
4.8/5 (132+)

Online PDF Flattener — Tool

Upload your PDF with interactive elements. The tool will automatically merge all layers into one.

Your files are always private. The entire process runs securely in your browser.

How to Flatten a PDF Online — Step by Step

Create a secure, non-editable version of your PDF in seconds.

  1. Upload your PDF file — Drag and drop your document or select it from your computer into the widget.
  2. Automatic Flattening — The tool instantly processes your file, merging all layers and interactive elements.
  3. Download Your Flattened PDF — Click the download button to save your new, secure, and uneditable PDF file.

What gets flattened?

  • All interactive form fields (text boxes, checkboxes, dropdowns).
  • Annotations, comments, and highlights.
  • Digital and electronic signatures.
  • Multiple layers from design programs like Adobe Illustrator or Photoshop.

Why Flatten Your PDF Files?

Flattening is a crucial step for finalizing documents for sharing or archiving.

Protect Content

Prevent others from editing or tampering with form data, signatures, and annotations after you send the file.

Ensure Print Accuracy

Guarantee a consistent appearance when printing. Flattening prevents issues with interactive fields not showing up correctly.

Improve Compatibility

Some simple PDF readers cannot handle complex layers or forms. A flattened PDF will display correctly everywhere.

Reduce File Size

Removing the data associated with interactive elements can often result in a smaller, more streamlined file.

Frequently Asked Questions

Ready to finalize your document?

Lock in your content and make your PDF secure. Open the tool, upload your file, and get a flattened PDF in seconds.

Flatten Your PDF