![]() Now you can use the regular shortcut to open up PDFs to view them in their true glory or you can use the new shortcut with the switch to open up PDFs for a good, long read.įor the purpose of illustration, here's a non-inverted vs. Under the Shortcut tab, click on the Target field and add the below -invert-colors Open the file with the Preview app by clicking on 'File' and browsing through the directory where the file was saved. Right click the shortcut and click Properties.Create or duplicate a shortcut to SumatraPDF (and optionally, give it a different name) in a location of your choosing.With a simple shortcut switch, SumatraPDF can invert all colours within the document and this colour inversion is not limited to text, but also extends to embedded images too. ![]() tImageBitmap (invert (mEntireBm)) tImageBitmap (invert (mPatchBm)) Here is how you can invert a bitmap. Now this is where I found SumatraPDF to be an absolute lifesaver. In PageView while rendering bitmap just invert the bitmap. Press the sequence again to restore the default color scheme. Foxit Mobile PDF (Android, iOS: Free) (Image credit: Foxit Software) The mobile version of the popular desktop tool, Foxit Mobile PDF is another one of the best PDF reader apps for your mobile. Images in these readers are usually rendered untouched with a jarring white background. Well there is the free Negative or if you use Preview, you can invert the screen colors for the entire system by pressing Command-Option-Control-8. And then you will have to program your form accordingly. Both vendors have the API information published, meaning that you can see which objects, methods and properties are supported. But this in no way changes how images embedded within the PDF are displayed. The leaders of the pack are said to be PDFExpert by Readdle for iOS and qPDF Notes Pro by qoppa for Android. I think I've lost count on the number of times I wished PDFs or readers had a high contrast mode with white text on a black background.Īdobe Reader, Foxit Reader and the likes have a halfway solution by giving options for replacing the text background/foreground colours. ![]() This is because most PDFs have black text on a white background which is in no way easy on the eyes. In my personal experience, I've found the extended reading of PDF files on-screen to be an extremely daunting and tiring task. Besides the obvious PDF files that SumatraPDF can open, it can also be used to view ePub, Mobi, XPS, DjVu, CHM, CBZ and CBR files. SumatraPDF is a free, open source and a tiny document reader for Windows. ![]()
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