Does anyone know of a service (ideally docker image - probably with app) that can be used to securely share family pictures?
The idea is, that some relatives don’t respect wishes of not posting to social media and to prevent this we want to securely share images they can look at but not do anything else with.
Even if I send an image to my mom and she knows not to post anywhere, maybe my aunt wants to see that picture, asks my mom to send it to her and then she posts it, without us knowing.
Probably only works with an app because a browser can’t block screenshots.
Is there anything like this out there? Doesn’t have to by anything special. Just a web backend for us to upload pictures and a client (probably through a URL) that can then browse them without allowing for screenshots, sharing, downloading, etc
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You’re basically looking for DRM and I’m not aware of any DRM system that you as a non-media-conglomerate can use.
I’m also not aware of DRM that is actually effective. It’s mostly snake oil or, at best, “please don’t steal”-signs.
The ultimate Achilles’ heel of any DRM system is the analog hole: As soon as the user has an image on their screen, they can take a photo of said screen and share that in any way they want.As with multi-media piracy, you cannot solve this issue using technology.
For basic screenshots (the “family member keeps posting shit on Facebook” problem), DRM is more than effective. If your goal is preventing screenshots, DRM will work, though you may need to pick a level that’s not acceptable for commercial use cases (i.e. block Linux and/or Firefox because of limited DRM support).
You can’t prevent the analog loophole, but you can make stealing imagery enough effort to bypass that the impact of the problem is reduced.
Probably not. Anything like this would probably be overrun with or specifically designed for people sending shit like CSAM.
Honestly just you asking about this makes me very suspicious of your intent.
That said, of course anything like this is also functionally impossible because a determined person could just get around any sort of measures you are imagining, either natively on the device or just by taking a picture of one device with another.
So either you clearly have not thought this through or are looking for something like this for illicit purposes.
Either way this entire post is
You seem to be a very judging person. I just hope you’re not projecting your own thoughts onto other people.
I have thought this through, and obviously there’s always ways around. But I know that my relatives are not tech savy enough, and taking a picture from another phone isn’t something i can control anyway.
But why am I explaining this to you? The only thing on your mind seems to be CSAM, which is very suspicous and weird.
Maybe you aren’t aware but this is a specific issue with the technology you are inquiring about. It is literally impossible what you are asking and the conceivable nefarious uses lead one to that conclusion so you clearly have not thought this through as that has been specifically an issue combatted on this very platform.
Also this being literally your only post on this account is what made me suspicious in the first place.
“Uh hey anyone know any apps I can use to make sure nobody else can screenshot or share the pictures or things I post?”
You don’t see how that looks sus as all fuck?
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You would need a locked down device and be physically present at the viewing. Otherwise they can just take a photo of the photo with their phone and share that.
Am I the only one that gets how fucking sus this inquiry is? If they had thought it through like they claim they would have come to all these conclusions on their own both yours and mine.
The family member problem may be solved by either talking to your mom or not sending any pictures anymore after she shared them with your aunt. You can’t fix social issues through technology.
Browsers contain DRM for services like Netflix that will block most attempts at screenshots, though the lower versions of DRM (often used for low res video) may allow screenshots and recordings. In theory something using Fairplay or the highest level of WideVine can be cracked to get the full digital copy out, but that’s done by dedicated pirate groups using software or equipment your aunt won’t have.
As others said, there’s still the analog hole, you can’t prevent someone from photographing another’s screen.
A DRM image service would probably work for artists and photographers with cheap, incompetent customers who wouldn’t be able to figure out why they can’t take screenshots, but I think your aunt will just use her camera to take a picture of your mom’s screen.
Yes, i am aware that taking pictures of the screen is always possible. I was looking for a best effort solution, because blocking screenshots and sharing would definitely do most of the work. I don’t know why people immediately jump to DRM. It’s just an image viewing app that I’m looking for.
The social issue is, that my SIL already asked that none of her kids be posted to social media, but my BIL ignored that.
But since there doesn’t seem to be anything like that, I guess I’ll have to tell them that if they ignore it, they’re will be no more pictures
You may not like this answer but our solution to this is a Google Photos album, locked down so it’s invite only. Paired with a social media vigilance keeping an eye out for unauthorized posts. We’ve only had to treated to kick someone out of the album once. It works well for us. Especially at family events, people post the photos they take too so we have access and they now know not to post on social media.
There is nothing you can do about users taking screenshots.
What most professional photographers do is watermark the low resolution preview pictures, and only genrate download links once paid
Screenshots are easily defeated by the most basic of DRM. To get somewhat acceptable DRM you’ll need to lock out Linux users and such, but if you can screenshot DRM’d content, it’s because the service you’re using lets you.
You can’t prevent people from taking pictures of screens, though. It’s just a question of “can the average pirate pull this off in an acceptable quality” and “how much effort will pirates put into ripping video this way”.
how much effort will pirates put into ripping video this way
I have yet to find a video that was DRMd and couldn’t be found on high seas. The DRM is more inconvenient for the user who paid for the content than the actual pirate. It got to this point that I pay for Netflix and watch on pirate sites, because I don’t have to use a special browser on special os just to watch 1080p. Like what in the fuck?
Actually, there is plently that can be done against screenshots (plenty apps does that). But someone who takes a photograph of the said phone viewing the picture is a different matter.
There was some discussion about adding DRM Management into the JPEG standard, but I don’t believe that actually got implemented.
Signal, Whatsapp, and I think even Snapchat, has view once images. But it’s best effort, somebody could certainly take a photo with another phone, or even disable the anti-screenshot feature in the option screen. It just raises the bar.
