![]() ![]() The PDF document will print black text on a white background. That setting carries through to a PDF (the PDF button bottom left > Open in Preview). The document will print black text on a white background. Untick Print page backgrounds (if your print dialogue has that option). The rectangle will now be in the background of every page of that Section.įormat > Text > (Gear wheel) > Advanced Options > Text Background > None (bottom right of the Colour Chooser) to make the text transparent and allow the background rectangle to show through (no white around the text!). Make sure the image’s edge is within the thick border that appears as you trace. Trace the edge of the image you want to extract. With the rectangle selected, Menu > Arrange > Section Masters > Move Objects to Section Master. In the Preview app on your Mac, click the Show Markup Toolbar button (if the Markup toolbar isn’t showing), click the Selection Tools menu, then choose the Smart Lasso tool. I used Crayons > Magnesium.įormat Panel > Arrange > Object Placement > Stay on Page and Text Wrap > None.ĭrag to make the rectangle fill a whole page (I find that it "snaps" to the page edges). I have noticed that, when trying to open a pdf, ebook readers run pdftohtml tool.Adding to Jake's reply, you can insert a rectangle Shape into your document and set the rectangle to a colour that is easy on the eyes but still allows you to read the black text. ![]() The quality of pdf display in an ebook reader may depend on the pdf too. Color settings are accessed by opening a book, right-clicking, then selecting Preferences - Colors. Poor pdf text rendering in the document tested by me - sometimes lacking spaces between words and wrong display of non-English accented characters.Ĭalibre's Ebook Viewer - better rendering of pdf text (very few problems with the same document tested in Bookworm). I have tested only two:īookworm - it has 3 color profiles but each profile can be edited (fully adjustable colors for background and fonts under Preferences). As far as I can tell they do not display the text as well as a pdf viewer in all cases. Most eBook readers offer color settings for page and font, but only some of them can open pdf documents. Having a large white area on the screen all the time comes against the purpose of improving readability, so I prefer other solutions. Foxit Reader for Linux has the option of changing both the color of background and of text - either by selecting a color profileīut there are some limitations of Foxit Reader for the moment (version 2.4.4): it has no dark GUI (while not following a dark desktop theme) and no full-screen. ![]() PDF readers, beside Master PDF Editor and Zathura: Then you can shape the rectangle to fit the text you want to hide You just have to save it on print > save as pdf, or else other programs will be able to mess with it. text files saved/exported/printed as pdf) (A) The only way Ive managed to do it with Preview is by adding a black rectangle with the 'add shape' option under Markup Toolbar. ![]() Thus, a scanned pdf text can be read with different color profiles, just like an epub can in an ebook reader. With an image/scanned text, a value of #3b3537 for the page color and #b0afac for the font color gives this: Zathura - with settings like those mentioned in this older answerĬan change color of both pages and fonts even in image-based pdf files.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. a book or article scanned/photocopied and saved as pdf) There are exceptions, though, viewers that can do more than just inverting colors or changing only the background: For all pdf (including image-based) files There, the only possible color change of image-based pdf-s is inverting colors with viewers that have that option: Evince, Qoppa-PDFStudioViewer), xpdf (with the -rv argument, see here), mupdf ( here). paper that was scanned) the pages will in many cases show paper-like black-on-white text (even if images are extracted and converted to an ebook format as said here). In case the available text is a pdf formed of images (e.g. With most of the tools already mentioned under this question, only pdf files made out of text files (and not of scanned/photocopied text saved as image) can be treated so that colors of page and fonts (or at least of page, as expected by the OP) are changed. ![]()
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