How to protect PDFs with setting expiry date?
I want to set PDFs to expire at a certain date. Will your software expire a saved PDF, but also not allow it to open in chrome or internet explorer. Also can people normally open it in adobe acrobat(until the expiration date? If so exactly what program do I need? I really want to expire 9 PDFs. I have put a lot of work into them and I do not want people using them after a certain date.
If these PDF files are more important to you, we suggest you may choose our "Cloud PDF DRM Protector" software, you can download the trial version from this web page,
You can use following command line to convert your PDF file to a VPDF file and set Expiry Date to output VPDF file,
drmpdf.exe -expiry-after-date "2016/12/30 16:53" D:\in.pdf D:\out.vpdf
drmpdf.exe -expiry-after-date "2016/04/30 01:00" D:\in.pdf D:\out.vpdf
You can deliver the generated VPDF files and VeryPDF-Reader.exe to your customers, your customers will able to view VPDF files in VeryPDF-Reader.exe application easily, the VPDF files will stop to be viewed after the Expiry Date.
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