Rasterise PDF
Turn every PDF page into a flat image inside a new PDF at 72, 150 or 300 DPI. Stops text copying and fixes stubborn rendering issues.
Reviewed by Dany, RightSums team · Updated
Runs in your browser. Your files are not uploaded.
pdf-optimize · PDF tool · UK & US
Each page is drawn exactly as it appears on screen, including comments, stamps and filled form fields, then saved as a JPG or PNG image on a page of the same size. Choose 72 DPI for screen viewing, 150 DPI for normal printing or 300 DPI for high-quality printing, and set JPG quality from 40% to 100% (85% by default). PNG keeps text edges sharper but makes larger files. The result has no selectable, searchable or editable text, which is the point when you want to discourage copying or send a file that prints exactly as it looks. Very large pages may be rendered at a lower resolution to stay within browser limits. Rasterising happens in your browser.
Accepted inputs
Outputs
- PDF (image-only pages)
How to use the Rasterise PDF
- Drop your PDF into the box, entering its password if asked.
- Choose a resolution of 72, 150 or 300 DPI.
- Pick JPG and set its quality, or pick PNG for sharper but larger pages.
- Click Rasterise PDF and download the image-only copy.
Frequently asked questions
What does rasterising a PDF do?
It converts every page into a picture of that page, placed in a new PDF of the same size. The document looks the same, but its text, forms and comments become part of a flat image that cannot be edited.
Why would I rasterise a PDF?
To stop text being copied or edited easily, to fix printing problems caused by fonts or transparency, or to lock form answers and comments into the page. It is also a last resort for PDFs that display differently in each reader.
Will the text still be searchable?
No. Rasterised pages contain images only, so search, copy and screen readers will not find any text. Run PDF OCR on the result if you need searchable text while keeping the flattened look.
Which DPI should I choose?
Use 150 DPI for most documents. Choose 300 DPI if the file will be professionally printed or has small text, and 72 DPI only for on-screen viewing where file size matters most.
Does rasterising make the file bigger?
Often, yes, especially for text-heavy documents at 300 DPI or with PNG. Pick JPG at a lower quality or 150 DPI to keep the size down, or run Compress PDF afterwards.
Related tools
- Compress PDF
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- PDF OCR
Make a scanned PDF searchable and copyable with OCR. Adds an invisible text layer in seven languages, or exports the text as .txt.
- Flatten PDF
Merge form fields, comments, stamps and drawings into the page so they can no longer be edited. Text stays sharp and selectable.
- Redact PDF
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