PDFsharp & MigraDoc Foundation

Hello - any help on this is appreciated.


I have a pdf embedded in a webpage, and I'd like to hide one element in it while it's viewed onscreen. That hidden element does need to appear on the printed copy though.

Specifically, it's a printable coupon with a barcode on it. I need to hide the barcode while the pdf is viewed, to prevent users from doing a screen capture, or printing the entire webpage to present as a coupon. The barcode needs to appear in the printed copy, but not while still being viewed in the page.

Except for suggestions that my client should have thought this through better, I'd consider any information helpful This is really the functionality that I need.

I'm new to PDFSharp, but far enough along that I've got the coupon rendering perfectly in all other respects. I'm coding in C#.
Elegant solutions, and quick and dirty solutions are both on the table right now - I have to get this done.

Thanks,
Dan

Hi, Dan,

I don't think it is possible at all. Say, you think that you solved this problem somehow. User doesn't see barcode in web page.
He presses 'Print' and goes to print preview page. There he can grab barcode doing a screen capture.

Let's assume you've solved this problem too even I don't imagine how Adobe will allow such a hack that you don't see actual printout during preview. But then a smart user with installed virtual XPS or PDF printers will be able to do a screen capture.

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Regards,
Remigijus Pankevičius