Merge PDF
Combine multiple PDF files into one. Drag to reorder.
Drop the PDFs you want to merge
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Combine multiple PDF files into one. Drag to reorder.
or click to browse
Order is the part worth pausing on. It is far quicker to drag three cards into place now than to fix a 90-page document afterwards — though if it comes to that, Reorder Pages gives you a drag-and-drop thumbnail grid.
Merging copies real PDF pages rather than re-rendering them, so the output is not a fresh printout of your documents — it is your documents, in one file.
Text stays text. Selectable, searchable, copyable, and readable by screen readers, with the original embedded fonts. Images keep their pixels — nothing is recompressed on the way in, so a merged file is neither softer nor larger than the sum of its parts. Vector art stays vector, so logos, charts and signatures stay crisp at any zoom. Page size and rotation travel per page, which means a landscape spreadsheet dropped into a portrait report arrives landscape instead of squashed.
Bookmarks are carried across too. This is the part most browser-based mergers quietly drop, because the PDF outline tree lives at the document level and the standard page-copying routine leaves it behind. The outline from every source document is rebuilt in the merged file, nesting intact, with each bookmark re-pointed at the page it now belongs to. Non-Latin titles survive the trip as well. Open a merged 200-page bundle and the sidebar still navigates it.
Form fields and annotations come across with their pages. If you would rather they were permanently part of the page — no longer editable, no longer clickable — Flatten PDF bakes them in.
Twelve bank statements, or a folder of receipts, or every invoice from a single client. One file is easier to store, easier to search, and far easier to hand to an accountant than a directory of downloads named statement(7).pdf.
Plenty of scanners save one file per sheet. Merging them back into a document takes seconds. If the sheets came out in the wrong order, sort the cards before merging rather than after.
The familiar loop: print the signature page, sign it, scan it, and now you have a 1-page PDF and a 15-page PDF. Merge puts them back together. You can skip the printer entirely with Sign PDF, which places a drawn, typed or photographed signature directly on the page.
Proposal from a word processor, budget from a spreadsheet, appendix from a design tool. Convert each with Word to PDF and Excel to PDF, then merge them into one document that opens identically on every machine.
Portals routinely ask for one PDF containing passport, photograph, proof of address and supporting letters, often under a size cap. Merge them in the order the checklist specifies, then run Compress PDF if the total is over the limit.
Chapters, slides and handouts collected into a single file that a tablet can hold and annotate as one document.
A few small steps turn a stack of files into something that reads as one piece.
There is no fixed cap. The practical ceiling is your device's memory, and it is higher than most people expect — 50 to 100 ordinary documents merge comfortably on a laptop, and a mid-range phone handles typical office files without complaint. For very large batches of scans, compressing them first makes the whole thing quicker.
Yes. The outline tree from each source document is rebuilt in the merged file with its nesting intact, and every bookmark is re-pointed at the page it now sits on. Titles in non-Latin scripts come through correctly too. It is worth calling out because most in-browser mergers drop bookmarks entirely.
Documents carrying only an owner password — the kind that restricts printing or copying but opens without prompting — merge normally. For a file that asks for a password the moment you open it, run it through Protect PDF with the password to remove the encryption first, then merge. You can re-apply protection to the finished document with the same tool.
Slightly smaller, usually. Shared resources such as identical embedded fonts are consolidated, while image data is copied across untouched rather than being re-encoded. If the total still needs to come down, Compress PDF is the next step.
Two routes. Insert Pages takes a page range like 1-3,7 from one document and places it at a chosen position in another — the direct approach. Alternatively, use Delete Pages to trim each file first, then merge what is left.
No. Every page keeps its own dimensions and rotation, so A4 pages, Letter pages and landscape charts coexist in one document. Viewers and printers handle this routinely. If you would rather everything matched, Crop PDF trims pages to a consistent box.
Convert them first, then merge. Image to PDF handles JPG, PNG and HEIC photographs, Word to PDF takes .docx, and Excel to PDF takes .xlsx — each producing a normal PDF that drops straight into the merge list.
No. The merge runs in JavaScript inside this browser tab using pdf-lib, and the finished document goes straight to your downloads folder. Nothing is transmitted, nothing is retained, and closing the tab clears it. Switch to airplane mode before you start and merging still works.
Privacy: Merging runs entirely in your browser using pdf-lib. No file contents are uploaded to any server. Closing the tab deletes everything.