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PDF Merger

Combine two or more PDFs into a single document. Drag to reorder, remove pages you do not want, and download — all client-side.

  • Runs in browser
  • No signup
  • No tracking
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How to use PDF Merger

  1. Drop PDF files into the upload area, or click to choose.

  2. Drag the file cards to reorder them — top to bottom = first to last.

  3. Remove any files you decide not to include.

  4. Click Merge & Download to save the combined PDF.

When to use it

  • Combining signed contracts with their appendices into one file.

  • Stitching multiple scanned receipts into a single expense report.

  • Assembling a portfolio PDF from individual project exports.

  • Merging bank statements before sending to an accountant.

What it fixes

  • Upload-based mergers that expose confidential documents to a third party.

  • Watermarked outputs from free tiers of desktop PDF apps.

  • Manually printing then rescanning to combine files.

About PDF Merger

Merging PDFs is one of the most common document chores: combining a signed contract with its appendices, stitching scanned receipts into one expense report, or assembling a portfolio from individual exports.

Most online mergers upload your files to their servers, which is a privacy problem for anything sensitive. This tool uses pdf-lib in your browser, so the PDF bytes never leave your computer. Drop in your files, drag to reorder, and export a single merged PDF.

References: pdf-lib — JavaScript PDF manipulation · ISO 32000 — PDF specification

Frequently asked

  • Are my PDFs uploaded to a server?

    No. Merging runs entirely in your browser using pdf-lib. The files never leave your device, so confidential documents stay private.

  • How many PDFs can I merge at once?

    There is no hard limit, but browsers slow down past ~50 medium PDFs because everything is loaded into memory. For very large batches, merge in smaller groups.

  • Will the output keep bookmarks and form fields?

    Page content, annotations, and most form fields are preserved. Cross-document bookmarks and complex JavaScript actions may be dropped.

  • Can I reorder pages before merging?

    Yes. Drag the cards to reorder, or use the up/down buttons. The output follows the order shown on screen.

Discussion

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