Recolour a PDF: save ink with grayscale, read at night with an inverted version, or make a faint scan crisp and high-contrast.
Runs in your browser
No sign-up
No watermark
Quick answer
To make a PDF grayscale or dark, choose a look (grayscale, inverted, sepia, high-contrast black and white, or scan clean-up) and press Restyle. Pages are redrawn with the new colours.
Look
Quality
Pages (blank = all)
How to use Grayscale & dark mode
Step 1
Add your PDF.
Step 2
Pick the look and quality, and optionally the pages.
Step 3
Press Restyle now and download.
• The result is made of page images, so text is no longer selectable.
What people use it for
• Save colour ink when printing
• Read documents at night with an inverted version
• Sharpen a faint scan
Frequently asked questions
Can I still select text afterwards?
No. The result is made of page images, so text is no longer selectable.
Where do my files go?
Most tools work entirely inside your browser tab, so the PDF is processed on your device and not uploaded to us. The AI tools are the exception: with your own key, the text of your PDF is sent to the AI provider you choose, and they say so before you start.
Do I need an account, and is there a limit?
No account, no watermark and no daily limit set by the site. Very large files are limited only by your device’s memory.