PDF Merger

Combine multiple PDFs into one. Drag to reorder, click to merge. Everything happens in your browser — no uploads, no signup.

01 — Overview

How it works

Merge any number of PDFs into a single file. Drop your PDFs, drag them into the order you want, click Merge. The output preserves the original page sizes, fonts, and embedded media. Built with pdf-lib (MIT, pure JavaScript) — no server, no waiting in a queue, no upload size limits beyond what your browser can handle.

02 — Use cases

When to use it

  1. 01

    Combine multiple bank statements into one PDF for taxes

  2. 02

    Merge a cover letter and resume into a single PDF for an application

  3. 03

    Assemble scanned pages into one document

  4. 04

    Concatenate research papers into a single reading file

03 — Examples

Real input, real output

3 single-page PDFs → merge in order

ex 01

1 PDF with 3 pages, total size approximately equal to the inputs combined

Standard merge with page-size preservation.

10 mixed-size PDFs → merge

ex 02

1 PDF, each original document's pages preserve their original layout and size

Different page sizes are preserved as-is.

04 — FAQ

Frequently asked

No hard limit. Browser memory is the real constraint — dozens of PDFs work fine, hundreds-of-MB total may slow down. If you hit memory pressure, merge in smaller batches.

05 — More

Tools that pair well

PDF to JPG Converter

Turn each page of a PDF into a JPG or PNG image. High-resolution output, batch download as zip, all in your browser.

PDF/pdf-to-jpg

Images to PDF Converter

Combine JPG, PNG, and WebP images into a single PDF. Drag to reorder, pick a page size, download. No upload, ever.

PDF/images-to-pdf

Image Converter

Convert between PNG, JPG, WebP, AVIF, JPEG XL, TIFF, BMP, GIF, SVG, ICO, and HDR — instantly, in your browser. No upload. No waiting. Free for unlimited files.

Image/image-converter