Thread: k2pdfopt: optimizes PDFs for viewing on e-readers
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Old 11-01-2012, 10:00 PM   #209
willus
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Quote:
Originally Posted by davr View Post
Can you explain in more detail the method you used here: http://www.willus.com/k2pdfopt/help/screensize.shtml to determine the correct values? In particular the "special custom PDF images", wondering if I could re-use them.
I created a test image of exactly a certain size (not critical what is in it--maybe a grid or something) using the Windows Paint software, embedded that image into a PDF file, sent the PDF file to my kindle, and then did a screen grab on the kindle-displayed PDF and sent that screen-grabbed bitmap back to my PC to analyze it. Once the original bitmap that I created with Paint exactly matched the screen-grabbed bitmap, I had a 1-to-1 mapping. It took some doing, as described under v1.16 of the version history. I had to put little 1-pixel marks in the corners with some padding on the right and bottom.
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