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Preparing your browser based PDF tools.
Preparing your browser based PDF tools.
Flip light and dark so a white PDF becomes a dark one, directly in your browser.
Drag & drop your file here
or browse from your device
Reading a bright white page on a screen at night is tiring. Flipping it to light text on a dark background is easier on the eyes, and some people find it easier to read generally.
Every colour is flipped, so photographs and diagrams come out looking like a negative. For a text document that is fine, but check anything with pictures before you rely on it.
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 is usually right here, since inverted files are read on a screen.
Every page is redrawn on your own device, with nothing uploaded.
Save it. Your original PDF is left untouched.
Add your PDF and run it. Light becomes dark and dark becomes light, so a white page with black text turns into a black page with white text.
It gives a similar result but works differently. A reader with a dark mode leaves the file alone and changes how it is shown. This makes a new file that is genuinely dark, which means it stays dark in any reader, and on any device.
They come out looking like a photographic negative, which is rarely what anyone wants. This suits text documents. If your file is full of pictures, a reader with a dark mode is the better choice.
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.