500px vs MarkReader
A side-by-side look at 500px and MarkReader. For an in-depth review of either product, follow the links below.
500px
Photos & Graphics
500px is a photo sharing website and community built by photographers, for photographers. It allows users to upload, search, license and sell high-resolution photos. Known for its strict rating system and premium artistic photography.
photographyphoto-sharingsocial-network
MarkReader
Office & Productivity
MarkReader is a free, open-source document viewer and annotation tool. It allows users to view PDFs, Word docs, PPTs and more while adding highlights, notes, bookmarks and annotations. Useful for reviewing documents, collaborating with others, and organizing research.
pdfviewerannotationhighlightsnotesbookmarkscollaborationresearch
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