Zevrix Solutions releases PDF Checkpoint 1.7.21, a feature update to company's PDF preflight and conversion solution. Remarkably fast, PDF Checkpoint automatically preflights, saves as images, splits and optimizes multiple Adobe PDF files. The software can also convert PDF colors and helps users easily prepare files for print, web and mobile devices. The new version introduces automatic file renaming when splitting PDFs into pages in situations where files with original names already exist. PDF Checkpoint 1.7.21 is $39.95 and can be downloaded from their website.