Shizu @ Shizu @lemmy.world

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2 yr. ago

Nobody: you can't hear a meme. The Meme:

If you have a Mac and xcode on it you build the IPA and deploy it to your iphone thru xcode. A developer needs to be able to test their own application this xcode just uses your regular devices and let's you deploy onto them.

The beauty of open-source is that you can build an APK/IPA yourself and be sure that your app - your version is truly not spying on you. I think most people just take Signal's devs words for it that it's the same.

Fair, then reprinting won't help. I'd go ahead and come up with some Python script which exported all pages as png, edited that specific portion of every image and recompile it to a pdf. I'm not sure if there is a too which could already do that out-of-the-box.

Why would the checksum differ between downloads if there was a watermark with user identifiable data

I would try reprinting the PDFs and comparing the hashes afterwards. That should remove any metadata in the headers as new headers are created.