Convert a PDF to Grayscale Online for Free
Turn every page's colors to grayscale — no upload, no signup, up to 100 MB.
Your file never leaves your deviceDrag & drop your PDF here
or Max 100 MB · Free · Processed entirely in your browserHow to Convert a PDF to Grayscale
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Upload your PDF Drag & drop or browse your PDF.
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Confirm No settings needed — every page is converted automatically.
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Download Save your grayscale PDF instantly.
Every color, converted
- Private by designYour PDF is processed on your device and never uploaded.
- InstantNo upload queue — your browser does the work locally.
- Free, no signupNo account, no credit card, no trial that expires.
- No settings neededUpload and confirm — every page is converted automatically.
- Everything, not just photosColored text and vector graphics turn grayscale too, not only embedded images.
Frequently Asked Questions
Is it free?
Yes. No signup required.
Is my file safe?
Yes — your PDF is processed entirely in your browser and never uploaded.
Does it convert everything, or just images?
Everything. Each page is rendered as a whole — text, vector graphics, and images — then desaturated, so colored text and shapes turn grayscale too, not only embedded photos.
Will the text still be selectable?
No. Converting every color on the page (not just images) means rendering each page as a picture, so the output's text can't be selected, searched, or copied. Keep your original file if you need selectable text.
Are there settings to configure?
No — conversion is automatic. Just upload your file and confirm.
Will this change my file size?
It can go either way — pages are re-encoded as images, so a text-heavy PDF may grow while an image-heavy one may shrink.
Max file size?
100 MB.