Free Grayscale PDF
Turn a colour PDF into black and white to save printer ink or meet form requirements. Free, private and unlimited.
- 100% free
- No limits
- No upload
- No watermark
- Works on mobile
How to use the Grayscale PDF
- 1
Add a PDF
Drop the colour PDF in the box.
- 2
Choose quality
Pick the output quality.
- 3
Convert
Press Convert and download the black and white PDF.
Why use Qu-Outil's Grayscale PDF
Fast, private and free — with no limits.
Saves ink
Grayscale PDFs print without using colour ink.
Smaller files
Removing colour usually makes the file smaller too.
Private — nothing is uploaded
Your files are processed in your own browser and never leave your device. Safe for personal and business documents.
Free and unlimited
No sign-up, no watermark, no daily limit and no file-count cap. Use it as often as you like.
Works on phone and computer
Runs in Chrome, Safari, Edge or Firefox on Android, iPhone, Windows, Mac and Linux — nothing to install.
Grayscale PDF — frequently asked questions
Is the text still selectable?
Pages are redrawn as grayscale images, so text is no longer selectable. Keep the original if you need that.
Is it really free?
Yes. Qu-Outil is completely free with no sign-up, no watermark and no usage limits.
Are my files uploaded?
No. The work is done in your browser on your own device, so your files are never uploaded or stored anywhere.
Help keep Qu-Outil free
I build and run these tools in my free time and keep them free for everyone — no ads, no sign-up. If they helped you, buy me a chai or coffee via Google Pay or any UPI app. Your support keeps me building more free tools. Completely optional.
samarthdalela@oksbiThe button opens Google Pay, PhonePe or Paytm on your phone. On desktop, scan the QR.
Scan to pay ₹50
Works with any UPI app