Summary for vectors
Shutterstock
EPS + JPG with same filename
EPS format 8 or 10
Maximum filesize 15MB
JPG preview should be 700 – 900px (but they accept also bigger, max. 25 MPx)
Fotolia
EPS + JPG packed in one ZIP file
EPS format 8 or 10, AI
Maximum filesize 2MB (this is what they have written on the site, but they accept bigger without any problem – up to 15 MB)
Jpeg 3000x5000
Dreamstime
JPG, EPS you have to upload manually as additional format
EPS format 8 or 10, AI, CDR
JPG preview should be bigger
There is no limit for file size
iStockphoto
You have to upload all manually
EPS format 8 or 10
JPG preview must have dimensions at least 1900×2800 px
Illustrations couldn’t contain open paths an texts
123RF
EPS + JPG with same filename
EPS format 8 or 10
BigStockPhoto
Formats: AI, EPS 8 or 10, PDF, PNG or PSD
You don’t need to upload JPG preview, they will generate it automatically – if you upload it, you will have 2 versions (bitmap and vector) in your portfolio
Bigstock can read IPTC information from the EPS, not from the JPG
Graphic Leftovers
EPS + JPG with same filename
EPS format 8 or 10
JPG preview should be as big as possible, minimum is 3MPx
Illustration shouldn’t contain ‚Sample text‘ (they can accept it only on a solid background)
Can Stock Photo
EPS + JPG packed in one ZIP file
EPS format 8 or 10
Can Stock Photo use the JPG just for IPTC information. The final JPG versions will generate automatically from the EPS file.
Crestock
Format EPS or AI packed in ZIP file, JPG preview should have the same name as ZIP
Or you can upload EPS and JPG with same filename
JPG preview size should be min 350×350px, but you should again upload as big as possible (if you upload bigger JPG, then it can be sold as a raster version), maximal size is 18 MPx
Depositphotos
EPS+ JPG packed in one ZIP file
EPS format 8 or 10, AI
minimum JPG preview size is 3.4 MPx (2400 х 1600 px)
Stockfresh
EPS + JPG with same filename
EPS format 8 or 10
JPG preview as big as possible