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does Dropbox compressed photo files???
I'm sending full resolution photo files to clients instead of burning them on a disc, but I want to make sure they are the full resolution. I had a client that had pictures made at Walgreens, and the...
I uploaded a 107.5MB TIFF file to Dropbox using a desktop browser, then downloaded the file. I then compared the file in my download folder to the source file.
Both were exact matches down to the byte: 107,525,5436 bytes.
I then checked for JPG. Also an exact match 9,177,764 bytes.
Then I checked CR2 files (Cannon's proprietary file extension)
Drumroll...both files were 23,921,835 bytes.
If you are using some mobile app to upload your photos...switch to desktop if you care about such things, but blame the right party.
Last I checked, I do not work for Dropbox, nor do I own any stock. If you call someone a liar, you better be able to back it up at least as well as dropbox backs up your files.
Well, the people in this thread tested not only byte numbers but also checksums like md5 and it's definitely a different file. the fact DB just released a JPG (re)compression algorithm lately suggest that their "lossless JPEG compression" is not really lossless as they claim. It's nice that it saves them about 20% of the disk space, but I stopped using this service for photos since we discovered this. in fact I only ever use it to send and receive files larger than Email allows. for all the rest I have set up a private NextCloud. I suggest the same to all the other techies in this thread.
