MEO is a powerful data encryption application to encrypt or decrypt files of any type, including Microsoft Word, email, and PDF documents. It can also create self-extracting encrypted files. This is handy for those who like to view their encrypted files without installing any other encryption software. Also, many downloads supply a checksum or hash value for you to verify the integrity of your download. Meo allows you to create and verify MD5 checksums, SHA-1 hashes, and Tiger Tree hashes.
Proview is a PDF editor that allows you to merge and split files; rotate, flip, and scale individual pages or all pages; crop pages; and modify the document information. It can edit encrypted files, and can decrypt and encrypt PDF documents. You can also manage PDF bookmarks, add or remove PDF attachments, and add text and dates to one or more pages. Proview has a simple, clean interface with all functions easily accessible, and it comes with full interactive help.