How do I convert a PDF to grayscale?

Drop your PDF in and it is converted in your browser straight away, then download it. The colour instructions inside the file are rewritten, so your text stays text and the pages are not turned into pictures.

Can I convert pdf to grayscale without uploading my file?

Turn a colour PDF black and white in your browser. Text stays selectable, the layout does not move, and nothing is uploaded. OnDevicePDF runs locally in your browser, so your file is not uploaded to a server.

Which tool should I use to convert pdf to grayscale?

Use Convert PDF to Grayscale. It is built for this workflow and keeps processing on-device in your browser.

Will converting to grayscale turn my text into an image?

No. Many tools re-render each page, which makes the text unsearchable and can multiply the file size many times over. This tool rewrites the colour instructions inside the PDF, so text stays selectable, links keep working and the file usually gets slightly smaller.

Can I convert pdf to grayscale without rasterizing without uploading my file?

Most converters re-render every page as an image, so the text stops being searchable and the file balloons. This rewrites the colour instead. OnDevicePDF runs locally in your browser, so your file is not uploaded to a server.

Which tool should I use to convert pdf to grayscale without rasterizing?

Use Convert PDF to Grayscale. It is built for this workflow and keeps processing on-device in your browser.

Why does my black text come out grey after converting?

Some converters use their own colour maths, which lifts pure black a few percent off zero and looks washed out in print. This tool uses the conversions defined in the PDF specification, which map pure black to pure black exactly, whether the document defines it as RGB or CMYK.

Can I pdf black text prints as grey without uploading my file?

Black that comes out as 92% grey looks washed out on paper. The conversions here are the ones in the PDF specification, so black maps to black exactly. OnDevicePDF runs locally in your browser, so your file is not uploaded to a server.

Which tool should I use to pdf black text prints as grey?

Use Convert PDF to Grayscale. It is built for this workflow and keeps processing on-device in your browser.

Will this stop a print shop charging me colour rates?

It removes the colour from the file itself, so a printer that charges by whether a page contains colour has nothing left to charge for. That is more reliable than a print setting, which can be forgotten, reset between jobs, or ignored by a shared printer.

Can I print pdf in black and white to save money without uploading my file?

Libraries and print shops often charge several times more for any page containing colour. Converting the file first settles it before the printer decides. OnDevicePDF runs locally in your browser, so your file is not uploaded to a server.

Which tool should I use to print pdf in black and white to save money?

Use Convert PDF to Grayscale. It is built for this workflow and keeps processing on-device in your browser.

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🌒 Convert PDF to Grayscale

Turn a colour PDF grey, or pure black and white, for cheaper printing. Text stays selectable, nothing becomes a picture, and nothing is uploaded.

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Comment utiliser Convert PDF to Grayscale

1
Add your PDF
Click the upload area or drag your PDF in. You can add several files at once. Nothing is uploaded to a server.
2
Choose shades of grey or pure black and white
Shades of grey suits ordinary printing. Pure black and white removes every grey, for faxing and offset printing. Switching reconverts what you have loaded so you can compare.
3
Check what changed
Each file says how many pages and images were converted. If any colour could not be converted, it is named rather than left for you to discover at the printer.
4
Save the result
Download the grayscale PDF, or one ZIP if you converted several. Your text is still selectable and the layout has not moved.