How to protect your PDF files from copying…
I have seen a few ebooks in PDF format where you can't copy and paste the text from that ebook. It suppose this would […]
See original post by invalid@example.com (bertuseng)
Google Adsense and Competing Pay-per-click Ad Networks
I have seen a few ebooks in PDF format where you can't copy and paste the text from that ebook. It suppose this would […]
See original post by invalid@example.com (bertuseng)
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