Merge PDF Files

Merge PDF files online free — combine multiple PDFs into one, drag to reorder. No upload, no sign-up, 100% browser-based.

Combine multiple PDFs into one file. Drag to reorder.

Drop your PDF file(s) here or click to browse

.pdf · Your files never leave your browser

How to Use

  1. 1

    Drop two or more PDF files into the upload area, or click to browse.

  2. 2

    Drag the files to set the order you want them combined in.

  3. 3

    Click "Merge PDFs" — the files are combined instantly in your browser.

  4. 4

    Download the merged PDF. Nothing is ever uploaded to a server.

Frequently Asked Questions

Is it safe to merge PDF files here?
Yes. Your PDFs never leave your browser. Merging happens locally on your device using JavaScript — no files are uploaded to any server.
How many PDF files can I merge at once?
There is no fixed limit. Since processing happens in your browser, the practical limit depends on your device's memory — most devices handle dozens of files totaling 100MB+ without issues.
Can I change the order of the files before merging?
Yes. After adding files, drag them (or use the move buttons) to reorder. The merged PDF follows the order shown in the list.
Will merging affect the quality of my PDFs?
No. Pages are copied into the new document as-is — text, images, and formatting are preserved exactly, with no re-compression.

Related Tools

📝
EPUB Metadata Editor

Edit EPUB metadata online free — change title, author, language, cover image and more. No upload needed, works entirely in your browser.

📖
Online PDF Reader

Read PDF files online free — no software to install. Features bookmarks, text search, and zoom. Your files stay private in your browser.

📚
Online EPUB Reader

Read EPUB ebooks online free with customizable fonts, themes and reading modes. No app install needed — works in any browser.

🔄
PDF to EPUB Converter

Convert PDF to EPUB online free — no upload required. Fast client-side conversion that keeps your files private.

🖼️
PDF to Image Converter

Convert PDF to PNG or JPG images online free — high quality output, no upload required. Process files privately in your browser.

⚙️
PDF Merge, Split & Rotate

Merge, split, extract and rotate PDF pages online free. No upload, no sign-up — all processing happens in your browser.

✂️
Split PDF

Split PDF online free — separate pages or extract page ranges into new files. No upload, no sign-up, 100% browser-based.

📝
PDF to Markdown Converter

Convert PDF to Markdown online free — extract text and preserve formatting. No upload needed, 100% browser-based.

📦
PDF Compressor

Compress PDF files online free — reduce file size with adjustable quality. No upload needed, 100% browser-based for complete privacy.