Flatten PDF

Permanently embed interactive elements (form fields and annotations) into static page content. 100% private — processed in your browser.

100% Private - Zero File Data Collection - No Server Uploads Ever

Drag & Drop PDF Files Here

or click to select files

What is LuxPDF?

LuxPDF is an open-source, privacy-focused, and completely free suite of online PDF tools. We believe that your documents are your business, and we are committed to providing powerful, reliable tools without ever collecting your file data. Our platform runs entirely in your browser, ensuring that your files never leave your computer. With no ads, no registration, and no usage limits, LuxPDF offers a seamless and secure experience for all your PDF needs.

Why use our Flatten PDF tool?

Embed Interactivity: Permanently converts form fields and annotations into static page content.
Accurate Appearance: Automatically generates appearances before flattening for consistent rendering.
Private & Secure: 100% client-side processing with WebAssembly. Files never leave your device.
Ready to Share/Archive: Prevents further edits to form fields and comments.

How to use:

Step 1: Drag and drop your PDF(s) into the upload area, or click to select.
Step 2: Click "Process Files" to flatten.
Step 3: Download your flattened PDF(s).

Frequently Asked Questions (FAQ)

What exactly gets flattened?

All annotations and form fields are flattened into static page content using qpdf defaults (generate appearances and flatten all annotations).

Can I undo flattening?

No. Flattening is permanent. Keep a backup of your original PDF if you may need editable fields later.

Is my data private?