Several files at once
Drop one or many PDF files, click «Convert» and download the gray PDFs – one by one or all together.
Convert PDF to grayscale
Turn colour PDF documents into black and white: text, graphics, gradients and photos become gray while staying sharp – several files at once
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Information
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Sharp text and graphics
Text and drawings are not turned into pictures: they stay sharp and searchable, only their colours become gray.
Photos and gradients too
Photos, colour gradients and comments become gray as well, and photos keep their quality without making the file larger.
Links and forms stay
Links, bookmarks and fillable form fields are kept in the gray PDF.
Print and save ink
A gray PDF prints with black ink or toner only. To print right away with a preview, several pages per sheet or on both sides, use «Print PDF».
Secure conversion
The PDF is converted on our servers. Your files and results are deleted from our server after a short period of time.
Developed by Stefan Ziegler
Questions and Answers
How do I convert a PDF to grayscale?
Choose or drop your PDF files and click «Convert». A few seconds later you can download the gray PDFs.
Does the text in the PDF stay sharp?
Yes. Text and graphics stay vector graphics, only their colours change. You can still search and copy the text.
Is grayscale the same as black and white?
Grayscale keeps all the shades between black and white, so photos and coloured areas stay recognisable. This is what most people mean by a black and white PDF.
Does a gray PDF save ink?
Yes. Printed in grayscale, your printer uses only black ink or toner and no coloured ink.
Are links and form fields kept?
Yes. Links, bookmarks and fillable form fields remain in the gray PDF.
Can I convert a password-protected PDF?
Yes. If a PDF is protected with a password, you are asked for it when you add the file.
Is it free?
Yes. Converting PDFs to grayscale with PDF24 is free, without registration and without watermarks.