Grayscale PDF – Convert PDF to Black & White
Remove all colors from your PDF to save printer ink and reduce file size.
Upload a PDF to Convert to Grayscale
Drag & drop your file here, or click to browse
Choose PDF FileHow to Convert a PDF to Grayscale in 3 Easy Steps
Turn a color PDF into black and white in seconds — no Adobe Acrobat needed.
Upload Your PDF
Drag and drop your PDF into the box above, or click Choose PDF File. Files up to 50 MB and 300 pages are supported.
Click Convert to Grayscale
All colors in text, images and drawings are changed to shades of gray. Text and vector graphics stay sharp.
Download Your PDF
Click Download to save your black-and-white PDF, ready to print or send.
Why Convert Your PDF to Grayscale
Black-and-white PDFs are cheaper to print and often much smaller.
Save Printer Ink
Print without using colored ink or toner — great for long documents and study material.
Smaller Files
Gray images take less space, so scanned and photo-heavy PDFs usually get smaller.
Text Stays Sharp
Text and vector graphics are kept as they are — only the colors change.
Meet Submission Rules
Some exam, job and court portals ask for black-and-white documents.
Private and Secure
Encrypted upload, isolated processing and automatic deletion within 1 hour.
Free, No Watermark
No sign-up and no Toolszu logo in your PDF.
Tips for Grayscale PDFs
- Need it even smaller? After converting, run the file through Compress PDF.
- Check charts and maps: colors that look different may become similar grays. Check the result before printing.
- Password-protected PDF? Remove the password first with Unlock PDF.
Frequently Asked Questions
Quick answers about converting PDFs to black and white.
Upload your PDF, click Convert to Grayscale and then Download. All colors become shades of gray. It's free, with no sign-up.
Grayscale uses black, white and all the shades of gray in between, so photos and charts still look natural. It's what most people mean by a black-and-white PDF.
Yes. Text and vector graphics are not turned into pictures, so they stay sharp, selectable and searchable.
Usually yes, especially scanned PDFs and PDFs with many photos. For an even smaller file, also use Compress PDF.
This tool converts the whole document. To convert only some pages, split them out first with Split PDF.
You can upload PDFs up to 50 MB and 300 pages, and convert up to 20 PDFs per day for free. The daily limit resets every day.
Yes. Open this page in Safari, Chrome or any mobile browser, choose your file and tap the button. No app is needed.
Yes. Your file is sent over an encrypted connection, converted in an isolated sandbox with no internet access, never shared with anyone and deleted automatically within 1 hour. You can also delete it right away with the Delete now button.
Yes, it's 100% free. There's no sign-up, no premium version and no watermark or Toolszu logo added to your file.
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Convert your PDF to black and white in seconds — free, with no sign-up.
Convert PDF to Grayscale