Combine PDFs in any order, or split a PDF by ranges, per page, or every N pages — fully in your browser.
A free browser-based tool to merge PDFs in any order — with per-file rotation and drag or ↑/↓ reordering — or split one PDF by ranges, per page, every N pages, or by picking pages visually from thumbnails to extract into a single PDF. Everything runs locally; nothing is uploaded.
Drop your PDFs onto the merge tab and drag them into the order you want, then click Merge. To split, switch to the Split tab, drop one PDF, pick a mode and click Split — you get a ZIP back. Both run entirely in your browser using the open-source pdf-lib library.
Merge tab: drop your PDFs, drag or use ↑/↓ to set the order, rotate any file, set an output name and click Merge. Split tab: drop one PDF, then pick a mode — every page, ranges, every N pages, or click thumbnails to select pages and extract them into a single PDF. One file downloads as a PDF; several arrive as a ZIP.
No — fully local
200 MB per file
Yes — e.g. 1-3, 5, 7-9
Page content preserved
Built on pdf-lib (MIT) and JSZip, byte-faithful to original page content.