PDFTK Builder - PDFTK Builder is a free graphical interface to for PDFTK, making it much easier to use.
Img.vision - Image hosting & video hosting for eCommerce sellers
QPDF - QPDF is a command-line program that does structural, content-preserving transformations on PDF...
UploadHouse - Thumbnail and resize your photos and images
iSafePDF - iSafePDF is a free open source PDF protection software.
ImageVenue - ImageVenue is a great online hosting service that allows uploading pictures for showing creative works with a simple-to-use technique.