📄 PDF Merge / Split / Reorder
Drag & drop multiple PDFs, reorder / rotate / delete pages, then merge into one PDF. Split by page range supported. Everything happens in your browser.
🔒 About Privacy
- ・All processing happens entirely in your browser
- ・PDF data is never sent to any server
- ・No storage logs, no upload history, no database
- ・No signup, no login, no payment ever
Drag & drop PDFs, or click to select (multiple allowed)
💡 Drag pages to reorder, use buttons to rotate or delete
🔗 Merge and download
✂ Split by range
Example: 1-3, 5, 7-9 (numbers refer to current order)
📖 Where people get stuck
Merge several PDFs, reorder, rotate and delete pages, and split out a range. Everything runs in the browser. All it does is copy whole pages: it neither compresses nor re-encodes anything. The flip side is that anything attached to the document as a whole — bookmarks, annotations, form fields, digital signatures — does not survive the trip.
| Case | What happens | What to do |
|---|---|---|
| The merged file is bigger than the sum of the originals | If the same font is embedded in three source PDFs, all three copies are still there afterwards. Objects are copied page by page, so fonts and images are never shared across the inputs. Merge ten documents that carry your company logo and you get a PDF containing ten copies of that logo. Add a little structural overhead on top and the result is normally a few percent larger than the sum. | Do not expect a merge tool to shrink anything. If you need it smaller, run a dedicated optimiser afterwards — gs -sDEVICE=pdfwrite -dPDFSETTINGS=/ebook -o out.pdf in.pdf (Ghostscript) is the standard move, and it does merge duplicate fonts and recompress images. That recompression is lossy and will smear the fine detail in diagrams, so pick /prepress for print masters and /ebook for something meant to be read on screen. The weight is almost always in the images, so checking each input first is usually the faster diagnosis. |
| Bookmarks, links, form fields and signatures are gone | These live on the document, not on a page. The outline sits in the document tree, form fields in the AcroForm dictionary, and annotations, though attached to pages, only mean anything together with the document-level references. Copying pages alone breaks those references, so the objects cannot come along. Signatures are a sharper case: a signature attests that a specific byte sequence is unaltered, so adding a single page necessarily invalidates it — that is the signature working correctly, not a defect. | Do not merge a signed PDF. If a single volume is genuinely required, the correct sequence is to merge first and sign the result afresh, keeping the originals somewhere safe because the old signatures are gone for good. When bundling form PDFs for distribution, flatten them first so the fields become ordinary drawing, then merge — otherwise duplicate field names collide and typing into one copy rewrites the other. If you need the outline, put it back afterwards with qpdf or Acrobat. |
| The split range does not pick the pages you expected | The numbers in a range refer to the current on-screen order, not to the pages of the original file, so any reordering or deletion shifts them. More confusing still is the mismatch with the page numbers printed on the paper. In a document where the cover and contents pages carry no folio, the sheet marked page 12 is routinely the fifteenth page of the PDF. | Finish all your reordering and deleting first, and type the range last. Writing ranges while you are still shuffling pages is a near-guaranteed off-by-something. Before extracting, eyeball the first and last thumbnails; with a skipping spec like 1-3, 5, 7-9 you only need to check the one page at each boundary. If you are splitting a document chapter by chapter, reloading the original file for each extraction keeps the numbering stable and ends up faster. |
Rotating a page does not turn any pixels; it sets a /Rotate 90 attribute on the page. Viewers honour it, but an old print driver or a bare-bones viewer that ignores the attribute will render the original orientation — for anything you are submitting or printing, open the print preview and look. Second: password-encrypted PDFs cannot be loaded. That covers both files that need a password to open (user password) and files that merely restrict printing or editing (owner password), because the file itself is encrypted either way. Remove the protection first, then load it — there is no feature here for getting around restrictions.
📖 How to Use
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1
Load PDFsDrag and drop or click to select multiple PDFs. Each page is shown as a thumbnail.
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2
Reorder, rotate, deleteDrag thumbnails to reorder. Rotate by 90 degrees, or delete unwanted pages.
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3
Merge or split and downloadClick Merge to save as one PDF, or enter a range like 1-3, 5 to extract a subset.
❓ Frequently Asked Questions
Is my PDF uploaded to your server?
Can I process password-protected PDFs?
Is there a file size limit?
🔗 Related Tools
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