forumkruto.blogg.se - Change background color of pdf

I had to convert that to pdf (I used the print function in WinDjView and used the Microsoft Print to PDF printer to do the conversion). For example the book itself was in djvu format. I will not focus on the steps that were unique to the book I wanted. Here I will detail the steps I took to remove the color from all pages of the book. So I wanted to accomplish this without having to try out premium software like Adobe Acrobat PRO. The idea that I got from my brief readings was that the only real way to accomplish this is to edit the brightness and contrast of every single page in the book. Since this is not a background color per se (in the sense of being electronically set) you cannot remove it with a single click in a pdf editor. I looked around a bit on the internet and there didn’t seem to be an easy way to remove the color from all of the pages at once. Now obviously you cannot print a book with that sepia background color because, well, you just can’t, unless you want to drain the life out of your ink set before reaching page 20. I’ve also made a quick runnable JAR over here.I recently wanted to print a scanned version of the second volume of Jane Austen’s Juvenilia available in the djvu format, but the problem was that it looked like this:

.fonts.SimpleFont: change a line so it reads if(code != null & glyphIndexes.get(code) != null).

So sprinkle if(tableOffset != null) everywhere instead of throwing Exceptions to work around this issue.

.fonts.OpenFontParser: some fonts inside of PDF’s do totally not comply with standards.

.fonts.CMapParser: uses Integer.parseInt to convert a hex string to an integer, but this fails for large numbers.

They are part of PDFClown, so grab them off their GitHub repository, place them in your project and modify: Step three, you might need to make some changes to the following classes.

You’ll find a JAR file in the source code zip somewhere.

Perhaps some alternative PDF readers such as Foxit or Sumatra can do this right, but I’m using Evince, and - currently - not in the mood to start trying out others.

Check Replace Document Colors to set the page background to white and text colors to black.īut when printing, Adobe Reader decides to just put the background back in, even although the white background shows up in the page preview… Call it the ultimate troll, but that exactly how we know Adobe by now.

Press Ctrl+K to go to Edit -> Preferences.

Adobe Reader already allows to do the following: Turns out it is not so easy to convert this to printable design (at least not without having access to the original presentation file, that is). Removing Background Color from a PDF PresentationĮver ran across a PDF export of a Powerpoint which looks like this?