How to use this Flatten PDF tool
Flattening a PDF helps make forms, annotations, and other editable elements more fixed. This is useful when you want a cleaner, more consistent file for sharing, printing, or archiving.
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1
Upload your PDF files
Select one or more PDF files from your device or drag them into the drop area.
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Choose the flatten mode
Use Flatten Forms Only to make form fields and annotations read-only, or choose Flatten to Image for stronger non-editable pages.
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Organize and preview
Use grid or list view, sort files, preview pages, and reorder them before flattening.
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Flatten and download
Click Flatten PDF, then download the output from the toolbar button or the completion modal.
Flatten Forms Only
Best when you want to keep the PDF layout and quality while turning interactive fields and annotations into fixed content.
Flatten to Image
Best when you need a more locked result. Each page is converted into an image-based page inside the new PDF.
Private browser processing
This page is designed so your PDF files are processed locally in your browser, which helps keep your documents private on your device.
Why use Flatten PDF
Flattening can help keep PDF documents visually consistent and harder to edit after final review.
Share filled forms
Turn completed forms into a cleaner file for clients, teams, or official submissions.
Prepare for print
Reduce the chance of unexpected display issues caused by interactive elements.
Create a more fixed file
Flattening helps make the final PDF less editable and easier to distribute.
Archive final versions
Save a flatter, more stable version of a document once editing is complete.
Flatten PDF FAQ
Quick answers to common questions about flattening PDF files.
What does flatten PDF mean?
Flattening a PDF turns form fields, annotations, and other editable elements into fixed page content so the file becomes more read-only.
What is the difference between flattening forms and flattening to image?
Flatten Forms Only keeps the PDF structure while making fields read-only. Flatten to Image converts every page into an image-based page for a more locked result.
Can I undo a flattened PDF?
Usually no. It is best to keep a copy of the original PDF before flattening.
Is this Flatten PDF tool private?
Yes. This page is designed to process PDF files locally in your browser rather than relying on server-side processing for the main flatten flow.
Does the tool work on mobile devices?
Yes. The page layout and workspace controls are built to be responsive across mobile, tablet, and desktop screens.