Upload Suite is available in three editions: Express, Professional, and Premium. While they have different licensing terms, they also have different features.
|Maximum file size||100 Mb||2 Gb||any|
|Maximum pixel size of resized copies (no applied to originals!)||3 megapixels||5 megapixels||any 1|
|Maximum number of files||100||any||any|
|Multiple license keys in one code (including cross-domain uploads)||yes||yes|
|HTTPS support for both host and upload pages||yes||yes|
|Preserving EXIF metadata when creating thumbnails||yes||yes|
|Private-label version||on request|
|ActiveX/Java only features|
|Displaying and uploading folders||yes||yes|
|Amazon S3 support||yes||yes|
|Saving and restoring upload list||yes||yes|
|Automatic upload recovery||yes||yes|
|Uploading hash values for files||yes||yes|
|Preserving original color space when creating thumbnails||yes||yes|
|Uploading full file path||on request|
|Getting file paths through API||on request|
1) - Maximum size of thumbnails created for non-JPEG images is 16 megapixels. It is a Flash Player limitation.
Each edition (Express, Professional, and Premium) has its own set of license keys. For example, if you buy a Professional edition license, the obtained key unlocks Express and Professional features, but Premium features remain locked. However, the set of installation packages is the same for all editions.