Merge PDFs Into One File

Combine up to 20 PDFs into a single document. Drag and reorder, then download — no ads, no watermarks.

    1 credit per merge

    How it works

    Add two or more PDFs and arrange them in the order you want. Click merge and the tool stitches them into a single document — every page from every file, in the exact order you set. The merge happens entirely in your browser using pdf-lib, so your files are never uploaded to a server.

    When to use this

    • Combining a cover letter and resume into one file. Job applications often ask for a single PDF — merge both documents and upload once.
    • Assembling a report from multiple sections. When different people produce different chapters, merge them into the final deliverable.
    • Bundling receipts or invoices. Expense reports, tax prep, and bookkeeping are easier when everything is in one PDF instead of twelve.
    • Need the opposite? Use the split PDF tool to extract specific pages from a document.

    Common mistakes

    • Wrong file order. The merged PDF follows your list order top to bottom. Use the arrow buttons to rearrange before merging.
    • Encrypted or password-protected PDFs. Some PDFs with strict permissions may fail to merge. Remove the password first if possible.
    • Very large files. Merging happens in your browser's memory. If the combined size exceeds your device's available RAM, it may fail — try merging in smaller batches.