Combine multiple PDFs into one document in your chosen file order. Pages retain their sizes and rotations, and all merging happens locally in your browser.
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Choose 2–20 PDFs · 50 MiB each · 100 MiB combined · up to 500 pages total. A new selection replaces the current set.
Files merge from top to bottom, keeping each file’s page order, dimensions and rotation. Use Move up and Move down to reorder. This copies PDF pages directly without converting them into images.
Password-protected PDFs, interactive forms and signature fields are unsupported. Bookmarks, attachments, source document metadata and signatures are not preserved as a merged document. Merging is not PDF sanitization. Review the output in a trusted viewer before sharing.
Choose a file to see its pages. Previews are rendered locally.
No document selected.
Ready for a document.
Working previews show planned page operations. Generated-result mode renders the actual exported PDF, image, or selected ZIP part. Preview resolution is reduced for speed; download quality is unchanged. Links, scripts and attachments are not opened.
Select PDFs, arrange their order, then merge.
Ready. Choose your PDFs.
The complete result is offered only after every file succeeds. Stop or changing the selection discards pending work. Pages are previewed locally; document links, scripts and attachments are not opened.
Need images instead? Use PDF to Image. To build a PDF from photos, use Image to PDF.
Need selected pages or smaller parts instead? Use Split PDF.
Your PDFs are never uploaded to any server. A self-hosted PDF library copies pages inside a cancellable browser worker. No accounts, remote processing or persistent input history are required. Clear releases the file selection and result.
Choose 2–20 unencrypted PDFs, up to 50 MiB each and 100 MiB combined, with a maximum of 500 total pages. The output is limited to 100 MiB. Processing stops after 30 seconds; use fewer or smaller documents if necessary.
Pages are copied directly rather than rasterized into images. Their page content, sizes and rotation are retained. This does not compress or optimize PDFs. Complex document features may behave differently; review the merged result.
Encrypted or password-protected PDFs, interactive AcroForms, XFA forms and signature fields are unsupported. Use an unencrypted or flattened copy from a trusted PDF editor. Merging is not sanitization. Document-level bookmarks, attachments, source metadata and signatures are not preserved as a merged document; page annotations may be copied.
Files stay in the current page memory. The result is only offered after every selected document succeeds. Nothing is uploaded or automatically opened, and scripts, links and attachments are not executed by this tool. Clear releases local selections and output.
