DoxlyCombine several PDFs into one document, in the order you choose.
Merging is the most common reason people go looking for a PDF tool: a form and its annexures, three months of statements, a set of invoices for a claim. Each arrives as its own file, and whoever asked for it wants one.
Doxly copies the page objects from each source into a new document. Because pages are copied rather than redrawn, text stays selectable, links keep working, and nothing is degraded.
Because nothing is uploaded, this also stays fast on a bad connection: merging five large statements takes the same few seconds whether you're on fibre or a single bar of hotel Wi-Fi, since your browser never has to send those files anywhere to get the job done.
There is no fixed limit. The ceiling is your device's memory, since every page is held in the browser while it works. A few hundred pages is comfortable on a laptop; on an older phone, work in batches of twenty or thirty.
No. Pages are copied intact rather than re-rendered, so images keep their resolution and text remains real, searchable text.
Not directly. A PDF that needs a password cannot be read until it is unlocked. Open it in your reader, enter the password, save an unprotected copy, then merge that.
No. Merging happens in JavaScript in this tab. Nothing is transmitted to Doxly or anyone else.
Break one PDF into many, or take a range.
Delete the pages you don't need.
Keep only the pages you pick.
Rearrange, rotate and drop pages.
Turn pages the right way up.
Make an oversized PDF fit.
Photos and scans into one PDF.
Screenshots and graphics into a PDF.