Frequently asked questions
What is PDFStax?
PDFStax is the all-in-one PDF workspace: load several PDFs into one page grid, then merge, rotate, reorder, and delete pages across all of them in a single session, and export one combined file or split the result by page ranges.
Do I need a Pro plan to use PDFStax?
Yes. PDFStax is a Pro feature, included with Pro at $5/month ($3/month billed annually) or a $2 24-hour pass. The individual Merge, Split, and Organize tools remain free to use.
Are my PDFs uploaded when I use PDFStax?
No. Like every UtilStax tool, PDFStax processes your documents entirely in your browser. Even multi-hundred-page merges happen on your own device with nothing sent to a server.