Rasterize PDF Online Free — Flatten Every Page into an Image-Based PDF

Convert each PDF page into a high-resolution image embedded inside a brand-new PDF — perfect for locking down content, hiding redacted text, defeating font-substitution glitches and producing consistent prints from complex source files.

Click to select a file or drag and drop

One or more PDF files

Your files never leave your device.

How to Rasterize a PDF

1

Drop or Select Your PDF

Drag a PDF onto the upload zone or pick it from your device. The file is processed locally in your browser; nothing is uploaded to any server.

2

Render Each Page as an Image

ZentoPDF renders every page at a configurable resolution (default 200 DPI) on the HTML5 canvas and inserts the resulting image as the only content of a new PDF page.

3

Download the Rasterized PDF

Click download to get a brand-new image-only PDF. Text is no longer selectable, fonts no longer matter and the file renders identically on every device and printer.

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Frequently Asked Questions

Why rasterize a PDF?

Rasterizing locks the visual content of a PDF: nothing can be re-edited, copied as text or affected by missing fonts. It is the go-to step before printing complex layouts, finalising redactions, distributing read-only versions or freezing legal/financial documents.

Will the file be larger after rasterization?

Usually yes — vector PDFs are very compact, while image-based PDFs are bound by image compression. ZentoPDF uses a sensible DPI default and JPEG compression to keep the result reasonable; you can lower the DPI for smaller files when on-screen viewing is the main use case.

Will text remain selectable?

No — that is the point. Once a PDF is rasterized, its pages are pure images and the text becomes part of the pixels. If you need selectable text on rasterized pages, run them through our OCR PDF tool afterwards.

Are my files uploaded?

No. The whole rasterization happens locally in your browser. Your original PDF and the new image-based PDF never leave your device, which makes the tool safe for legal, medical and confidential documents.

Can I undo the rasterization?

No. Rasterization is destructive (text and vectors are gone forever in the output). Always keep a backup of the original PDF — ZentoPDF never overwrites your source file, but if you discard it you cannot rebuild a vector version from the rasterized output.