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Forum Discussion
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.
@Tim F: I read your blog post. To be clear, you are talking about the Dropbox iOS app's Camera Upload feature, correct?
"I have used the Dropbox Camera Upload feature for about 18 months to get photos off my iPhone..."
But then here you wrote:
"First of all I extracted a single photo IMG_7082 directly from my iPhone via USB. I copied the file out of the DCIM folder on the phone, which gave me a 2.8MB file as my “master copy”. Checking my Dropbox folder I found the file with the same name had a different checksum and is over 1 megabyte smaller, the plot thickens!"
If you had used the app's Camera Upload feature, the photo would not be named IMG_7082. Are you sure that's how you got that file into your Dropbox account?
