Sorry. I just realised that it was not scanned copies I was looking at. It was pdfs created by the Open University that I had highlighted in Adobe Reader. As I said, the highlighted areas are either blacked out in the ereader or the rest of the text is too feint.
It may be be because the OU uses a feint typeface. Yours has very strong contrast. My pdfs look nothing like that.
Sorry for the confusion over the scanning issue. Most of my documents are scans.
Last edited by rine111; 01-30-2017 at 10:45 AM.
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