MediaWiki:Apihelp-query+imageinfo-param-prop/en

Which file information to get:
 * timestamp:Adds timestamp for the uploaded version.
 * user:Adds the user who uploaded each file version.
 * userid:Add the user ID that uploaded each file version.
 * comment:Comment on the version.
 * parsedcomment:Parse the comment on the version.
 * canonicaltitle:Adds the canonical title of the file.
 * url:Gives URL to the file and the description page.
 * size:Adds the size of the file in bytes and the height, width and page count (if applicable).
 * dimensions:Alias for size.
 * sha1:Adds SHA-1 hash for the file.
 * mime:Adds MIME type of the file.
 * thumbmime:Adds MIME type of the image thumbnail (requires url and param $1urlwidth).
 * mediatype:Adds the media type of the file.
 * metadata:Lists Exif metadata for the version of the file.
 * commonmetadata:Lists file format generic metadata for the version of the file.
 * extmetadata:Lists formatted metadata combined from multiple sources. Results are HTML formatted.
 * archivename:Adds the file name of the archive version for non-latest versions.
 * bitdepth:Adds the bit depth of the version.
 * uploadwarning:Used by the Special:Upload page to get information about an existing file. Not intended for use outside MediaWiki core.