How to use the grayscale PDF
- Select a PDF.
- Choose quality, and extra contrast if the pages look faded.
- Tap Convert and download the black-and-white PDF.
Questions
Will the text still be selectable?
No. Each page is redrawn as a grayscale image, which works for every PDF and prints exactly as shown. Keep your original file for copying text.
Which quality should I choose?
"Standard" (150 DPI) is fine for most printing. Choose "High" (200 DPI) for small print or maps, and "Smaller file" to share on WhatsApp.
What does "Extra contrast" do?
It makes light grey text darker and the paper whiter, which helps with faded scans and photocopies.