
How to use Scanned PDF to Text (OCR)
Convert scanned PDFs into editable text with OCR, page by page. English and Urdu supported.
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Invert the colors of a PDF to create a dark-mode version that is easier on the eyes at night.
Reading white PDFs in the dark strains the eyes. This tool creates a dark version: “Dark mode” inverts brightness while keeping hues close to the original, and “Full invert” makes a photo-negative. Pages are converted to images, so text is no longer selectable.
Here is the whole process, step by step. It takes less than a minute from opening the tool to seeing your result.
Your result updates as you type — there is nothing to press and nothing to wait for.
Everything runs in your browser — your files and text never leave your device.
Yes. Invert PDF Colors (Dark Mode) on Apex Tool Station is 100% free with no signup and no watermark. Browser tools have no usage limits.
No. Everything runs locally in your browser using JavaScript. Your files and text never leave your device, which makes it safe for private documents.
Yes. The tool works on any modern browser on Android, iPhone, Windows, Mac and Linux.
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Invert PDF Colors (Dark Mode) is free, with no signup and no watermark. Open it and try it now.

Convert scanned PDFs into editable text with OCR, page by page. English and Urdu supported.
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Open a fillable PDF form, type into its text fields, tick checkboxes and choose options, then save the filled PDF.
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Draw black boxes over names, numbers and private details in a PDF. Pages are flattened so the hidden text is truly removed.
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Take photos of documents with your camera, enhance them to clean black-and-white scans and save as one PDF.
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