Merge PDF files
Combine several PDFs into a single document — in your browser, with no uploads.
Runs 100% in your browserAdd two or more PDFs to merge them.
How to merge PDF files
- Add your PDFs. Select two or more PDF files. They appear in a list in the order you added them.
- Set the order. Move files up or down so the pages combine in the order you want.
- Merge and download. Click Merge PDFs to build the combined file and download it instantly.
When you need to merge PDFs
Merging is one of the most common document chores: assembling a contract from its appendices, stitching a report together from sections written by different people, combining a batch of scanned receipts or invoices into one file to email or archive, or putting a cover letter in front of a résumé. The need arises because PDFs are usually generated one piece at a time but consumed as a whole — and recipients strongly prefer a single attachment over a dozen. This tool combines any number of files, in the order you choose, into one clean document.
How the merge preserves your pages
There are two ways to combine PDFs, and they are not equal. The wrong way is to render every page to an image and stitch the pictures together — fast, but it destroys selectable text, searchability and crisp vector lines. This tool does it the right way: it copies each page's underlying objects — the text, embedded fonts, vector graphics and full-resolution images — straight into a new document. Nothing is re-rendered or re-compressed, so a merged page is byte-for-byte equivalent to its source. Your text stays selectable and searchable, and image quality is untouched.
Order, and the things to watch
Pages combine top-to-bottom in the order the files appear, so arrange the list before merging — drag the files or use the up/down controls. A couple of things to know: encrypted PDFs can't be read without their password, so remove protection first; and while page content carries over perfectly, document-level extras like a bookmark outline or cross-file link targets may not all survive, because they describe a whole original file rather than its pages. For most documents this is invisible; for a heavily-bookmarked manual it's worth a quick check.
Private by design, and what to do next
The whole merge runs with a bundled library inside your browser — your documents never leave your device and nothing is uploaded or stored, which matters when you're combining contracts, financial statements or anything confidential. There's no watermark and no sign-up. Once merged, you can trim pages with the split PDF tool, rearrange or delete pages with the PDF organizer, or shrink an image-heavy result with the PDF compressor.
Frequently asked questions
- No. Files are merged entirely in your browser with a bundled PDF library. Nothing is uploaded and nothing is stored — close the tab and it is gone.
- Yes. Drag the files into the order you want, or use the up/down controls. Pages are combined top to bottom in the order shown.
- No. Pages are copied object-for-object into the new document rather than re-rendered, so text stays selectable, fonts stay embedded, and images keep their original resolution. A merged page is identical to its source page.
- Page content — text, images, annotations and form fields — is carried across intact. Document-level structure like the bookmark outline and the cross-document link targets may not all survive a merge, since they belong to the original file as a whole; the visible pages, however, are preserved faithfully.
- Only your device memory. Because everything runs locally, very large documents take longer and use more RAM, but there is no fixed cap and no per-file ceiling imposed by a server.
- Remove the password first (open it and re-save without protection). Encrypted files cannot be read in the browser without the password, so decrypt them before merging.
- No. The output is a clean PDF with no watermark, no page added, and no sign-up — just your combined document.