पीडीएफ को ग्रेस्केल में बदलें
एक रंगीन पीडीएफ को काले और सफेद या ग्रेस्केल में तुरंत बदलें।
Key Capabilities
Converts every colour space
RGB, CMYK, and spot colours are all converted to grayscale in one pass.
Usually shrinks the file too
Colour-heavy PDFs typically come out 20-50% smaller, as a side effect of removing colour channel data.
Text and vectors stay sharp
Only the colour information changes — resolution and line quality are untouched.
How to Use
Upload a colour PDF
Any standard document.
Convert
All colour spaces are converted to grayscale.
Download
The result is typically 20-50% smaller for colour-heavy files.
Common Use Cases
- Converting a brochure for office printingGrayscale printing runs roughly 60% cheaper per page than colour on most office printers.
- Prepping a research figure for a journalConverting a colour chart or figure for a journal that only accepts grayscale submissions.
Frequently Asked Questions
Will converting to grayscale reduce the file size?
Yes. Removing color data from a PDF usually reduces its overall file size, making it easier to share via email while preserving text and image quality.
Are my files uploaded?
No. The conversion to black and white happens locally on your device. Your files are never sent to a server, ensuring your data remains private.
Related Tools
Image to PDF | Combine JPG/PNG to PDF
Merge your JPG and PNG images into a single, polished PDF file. 100% private.
PDF to Image | Convert PDF to JPG/PNG
Turn every page of your PDF into a high-quality JPG or PNG image. 100% private.
PDF Page Manager
Drag to reorder pages, delete unwanted ones, rotate, duplicate, or extract pages from any PDF. No uploads — everything runs in your browser.
Sign PDF | Free E-Signatures
Add your signature to any PDF — draw, type, or upload. Free, private, zero uploads.