Archibald wrote in post #18193548
Agreed with the above. A couple of notes: if you upload the hi resolution file to FB, the pic might suffer degradation from whatever FB does to it. Try to find a way to send the file to the recipients directly. Email or Dropbox are good methods. And that curious resolution ppi
setting in LR when exporting - ignore it, it does not affect the resolution at all; really it doesn't affect the resolution even if it says resolution.
Just as a point of additional clarification...sometimes it DOES matter in LR...
- If you choose output to Dimensions and specify Vpixels and Hpixels, the Resolution value does not matter in the output pixel count.
- If you choose output to Width and Height and specify Vinch and Hinch, the Resolution value DOES matter and the output pixel count changes to suit!
Facebook can butcher photo quality.Facebook Photos Cheat Sheet
Width Height Notes
Cover Photo 828px 315px
Profile Picture in Header 168px 168px Must be uploaded at 180px by 180px
Profile Picture on Timeline 32px 32px Same image as main Profile Picture, automatically downscaled
Shared Link Thumbnail 470px 246px Only for full-width thumbnails. In some cases much smaller thumbnails are used.
Uploaded Timeline Photo Thumbnail 470px max 470px max See exceptions above for multiple images.
According to Facebook’s guidelines, 2048px is the ideal width for high resolution images. Your images will still be compressed.