Granted the PDF converter seems to have some trouble with graphics PDF's, but for books the converter works very well.
The Kindle DRM wasn't hacked to REMOVE the DRM from Kindle purchases, but added to other books so that they too could be read on the Kindle.
Use Mobipocket software to convert PDFs to that format so you can read them on Kindle.
There are converters available from Amazon and/or Mobi for pdf and doc files.
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