Merge PDF Files

PDFs arrive in pieces all the time: a contract split across three scans, a report whose chapters were exported separately, an application that asks you to combine your CV, cover letter and certificates into one document. Merging stitches them into a single file that's easier to send, print, archive and sign.

Most people reach for a PDF merger because an upload form, an email or a portal expects one document, not five. Combining them yourself — in the order you choose — saves the reader from juggling attachments and keeps everything in the right sequence.

When you add PDFs, the tool reads each one directly in your browser, copies every page into a new document in the order you set, and saves the combined file back to your device. Nothing is uploaded — the documents are assembled locally, which matters when you're merging contracts, payslips, medical records or anything you wouldn't want sitting on a stranger's server.

You can reorder the files before merging using the up and down arrows, so the final PDF reads in exactly the sequence you want. Page sizes are preserved, so mixing an A4 letter with a US-Letter scan keeps each page at its original dimensions.

Name or arrange your files in the right order before you start — it's quicker than reordering afterwards, especially with many documents. If your pages came from a scanner and a few are upside down, rotate them first, then merge.

Merging does not re-compress your pages, so the combined file is roughly the sum of its parts. If the result is too large for an upload limit, run it through a PDF compressor afterwards, or convert image-heavy pages before merging.

Because everything is local, a very large merge depends on your device's memory. If you're combining hundreds of pages on an old phone, do it in a couple of batches rather than all at once.