What you need
The PDF files, unlocked, and a rough idea of the page order you want. Everything runs in your browser, so large files are limited only by your device's memory.
Which tool for which job
| You want to... | Use |
|---|---|
| Join several files into one | PDF Merger |
| Delete, reorder or rotate individual pages visually | PDF Page Organizer |
| Extract page ranges, cut into equal parts or save every page | PDF Splitter |
| Add page numbers or a CONFIDENTIAL watermark | PDF Page Number Adder |
How page ranges work
Separate parts with commas. A part is a single page (5), a range (2-6) or an open range that runs to the last page (8-). For a 10-page document:
| Input | Pages selected | Files produced |
|---|---|---|
1-3, 5, 8- |
1, 2, 3, 5, 8, 9, 10 (7 pages) | 3 files (pages 1-3, page 5, pages 8-10) |
1-3, 5, 8- with Combine into one PDF |
1, 2, 3, 5, 8, 9, 10 | 1 file of 7 pages |
3, 1-2 with Combine into one PDF |
3, 1, 2 | 1 file with the pages in the order typed |
| Split every N pages, N = 4 | all 10 | 3 files of 4, 4 and 2 pages |
Because combined output follows the order you type, the splitter can also reorder or repeat pages when a visual rearrangement would be overkill.
Common pitfalls
- Merging in the wrong order. The list in the merger is the page order. Check it before pressing the button.
- Expecting bookmarks and forms to survive a merge. They belong to each source file and are not carried over; recreate them if you rely on them.
- Judging detail from thumbnails. The organizer draws low-resolution thumbnails for speed. Use them to identify pages, not to check fine print.
- Numbering a document twice. Add page numbers last, after all merging and reordering, or the numbers will be wrong.
- Overwriting the only copy. The tools save a new file. Keep the originals until you have checked the result.