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Remove the colour from every page of a PDF, directly in your browser.
Drag & drop your file here
or browse from your device
Colour printing costs several times what black and white does, and some print shops charge by the page regardless of how little colour is on it. Removing it first means no surprises at the counter.
Colours are converted by how bright they look to the eye rather than by simple averaging, so a green heading and a blue one end up at different shades instead of the same flat grey.
In a normal PDF the text is text. Each letter is stored as an instruction saying which letter it is and where it goes, which is why it stays sharp at any zoom, why you can select and copy it, and why searching works.
Changing how a page looks means redrawing it, and a redrawn page is a picture. The words are still perfectly readable, but they are now made of dots. Selecting, copying, and searching all stop working, and the file usually gets bigger.
That trade is worth making for what these tools do. It is worth knowing about beforehand rather than discovering later, and worth keeping your original file for.
Drag the file onto the upload area, or browse from your device.
Screen for the smallest file, print for something you will put on paper.
Every page is redrawn on your own device, with nothing uploaded.
Save it. Your original PDF is left untouched.
Add your PDF, pick a quality, and run it. Every page is redrawn without colour and the new file is ready to download.
You can, and for a one off that is simpler. Converting the file first helps when you are sending it to someone else to print, when a print shop charges for colour pages whether or not you wanted them, or when you want to see how it will look before paying.
Colours are judged by how bright they look to the eye rather than by averaging the red, green, and blue values. Green looks much brighter than blue at the same strength, and simple averaging turns both into the same flat grey. This way they stay distinguishable.
No, and this matters. Every page is redrawn as a picture, so the words become part of that picture. They look the same but cannot be selected, copied, or searched. Keep your original if you need those things.
Because text takes almost no room. A letter is stored as an instruction saying which letter it is, while a picture of that same letter has to store every dot that makes it up. Choosing the screen quality setting brings the size back down.
No. Everything runs inside your browser on your own device. Your file is never sent anywhere, and nothing is stored.
No. Your original PDF stays exactly as it is. The tool creates a new file for you to download.
Yes. It is completely free with no sign-up and no limits.
Continue working with your images and PDF files using these free browser based tools.