Merge multiple PDF files into one document instantly. Drag to reorder pages, combine any number of files, no upload, no sign-up, no size limit imposed by a server.
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Reviewed 2026-07-12
Merge PDF is one of the most-searched PDF tasks globally, with tens of millions of monthly queries. This tool combines two or more PDF files into a single document in your browser, preserving the full content of each — text, images, links, bookmarks, and form fields remain intact because no rasterization is involved.
The combination uses pdf-lib, which reads the PDF structure of each file and copies pages directly into a new document. The merge is lossless: vector content, selectable text, and embedded fonts survive the process. The resulting PDF downloads directly without passing through any server.
Drag and drop to reorder files before merging. The page order in the output follows the order in which files appear in the list from top to bottom.
Yes, completely free. No account, no watermark, and no limit on the number of files you can merge in a session.
No. All processing happens in your browser using a JavaScript PDF library. Your files are never sent to any server.
Yes. The merge copies PDF page structures directly — text, images, links, and fonts are preserved without re-encoding or rasterization.
Not directly. Use the Unlock PDF tool first to remove the password, then merge the unlocked files.
There is no hard limit. Practical limits depend on the total size and your device's available browser memory. Merge in smaller batches for very large files.
Browser tools can reorganize pages and add simple content without an install, but they are not full object-level PDF editors and cannot safely rewrite every paragraph, image, signature, or annotation.
Read guide →PDF-to-text extraction reads characters already encoded in the document; it does not inspect page images or perform optical character recognition.
Read guide →A careful PNG-to-PDF or JPG-to-PDF workflow keeps page images on your device, preserves their intended order, and ends with a check of the finished document.
Read guide →