![]() You dont need to install and worry about any software, you just have to choose your files. See my linked answer on Foxit Reader, which can match the two above but has no dark GUI and no full-screen.Ĭalibre Ebook Reader (like many ebook readers) can edit colors of font and page, but it can also open text-based pdfs.īy the way: in case somebody needs to transform a scanned text saved as image-pdf so that it becomes more readable by removing colored (gray, yellowish or pinkish) background, a good tool is ScanTailor, as described here. PDF24 makes it as easy as possible for you to recognize text via OCR. Just for text-based pdfs, Adobe Reader 9 can separately set both font and page colors (when it can still be used in Linux: more here). Qpdf can change both text and background color but only in text-based pdf files - and that in a rather odd manner: only background/"paper" color can be set directly, the font color can only be "inverted" from white to black: so, the trick is to set the direct color in such a way as to result in a desired color when inverted (see this answer, which provides an example of good setting for a proper dark mode result: Background color: #41403b, Paper color: #cccbca). Then, for easy access, configure toolbar and add Toggle change color. ![]() In newer versions of Okular (like 1.9.3) both font and page colors can be edited - and a dark-mode look can be enabled - through a new and rather non-intuitive setting, under Configure Okular - Accessibility - Color mode: Change Dark and Light Colors, by selecting a light color for dark and a dark one for light color option. Master PDF Editor More details in this answer, also PDF readers that can change both page and text color in both text and image (scanned text) pdf files are: PDF Shaper automatically gets all the images from the PDF.Simply inverting colors doesn't provide the best readability (being limited to very bright white text on very dark black background), although it can improve it a lot in a dark environment.Įvince and also pdfstudioviewer can do that, which will result in something like this (in both image and text pdfs):.Select a folder or create a new folder to save all the extracted images from the PDF.Scroll down to select Extract images in the Extract group.Click on the "+" symbol to add your file.PDF Shaper is minimal, but some useful features are under the hood. Upload your scanned document or image or enter a link. Extract text from your scans using OCR (Optical Character Recognition). There is a paid version, but fortunately, the free version has retained the image extraction feature. With this free online text converter, you can convert scans scanned images or scanned documents to text. PDF Shaper Free is a full-featured software that runs on Windows 10. All extracted images can be saved in a specific folder automatically. Readdles macOS-only PDF Expert is a popular PDF-editing tool that allows you to make changes to text in existing PDF documents by removing and replacing images, updating text, and adding text of. You can also sift through a specific image format with the Image Viewer. ![]() View the output in the frame on the right. Then, hit Convert, and the software goes to work scanning all the pages in the file. You can click on Advanced Settings and set a custom image quality. ![]()
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