Toolrack

Merge PDF Files

Works offlineNothing is uploadedFree, no sign-up
Drop PDF files hereor click to choose files

    Documents are read into memory and combined locally. Nothing is uploaded.

    Combine several PDFs into one, pull out the pages you want, split a document into separate files, or turn sideways scans the right way up. The whole operation runs offline in your browser.

    Order matters more than you think

    Pages are appended in the order the files appear in the list, so a merged document is only as sensible as the sequence you set. Use the arrows to reorder before merging — there is no page-level rearranging afterwards without going back to a full PDF editor.

    Files sorted by name in your file manager do not necessarily arrive in that order, particularly when names mix numbers and text: scan2 often lands after scan10. Check the list before you press merge.

    What is preserved

    If bookmarks matter for a long merged report, add them afterwards in a PDF editor — no browser-based merge tool preserves them reliably.

    Frequently asked questions

    Can I split a PDF instead of merging one?

    Yes — choose one file per page, or one file per input, and the result arrives as a zip. It is a zip rather than a burst of downloads because most browsers block the second and later saves of a burst, so a forty-page split would quietly deliver one file. Each name carries the page number printed in the source, so extracting pages 40-45 gives you a file called p42, not p3.

    My scan is on its side. Can this fix it?

    Press the rotate button next to the file to turn it a quarter at a time. The turn is added to whatever rotation the page already carries, which matters more than it sounds: scanners often write one in, and replacing it rather than adding to it leaves the page square with the scanner instead of square with you.

    Are my PDFs uploaded to a server?

    No. The merge runs in your browser using a JavaScript PDF library loaded with the page. Your documents are read into memory, combined, and handed back as a download. Nothing crosses the network, which matters when the files are contracts, invoices or medical records.

    Is there a file size or page limit?

    The only limit is your device's memory, since every document has to be held in RAM at once. In practice a few hundred megabytes of PDFs merge without trouble on a normal laptop. Very large scanned documents are the usual thing to watch — those can be hundreds of megabytes each.

    Does merging reduce quality or re-compress anything?

    No. Pages are copied across as they are, with their existing fonts, images and vector content intact. A merged PDF is normally close to the sum of the input sizes, and text stays selectable and searchable because nothing is rasterised.

    Can I merge password-protected PDFs?

    Encrypted files have to be unlocked first — the library cannot read a document it has no key for. Open the PDF in a reader, remove the password or export an unprotected copy, then merge that. Form fields and annotations from unencrypted files are carried over.

    Can I turn photos into a PDF?

    Yes — drop JPG, PNG, WebP, AVIF, GIF or BMP files alongside PDFs or on their own. Each image becomes one page sized exactly to the image, in the order shown, and the rotate button works on images too. JPEG and PNG embed as they are; the other formats are converted losslessly first. A single photo alone also works — that is just "JPG to PDF".

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