Order you can verify
See file sizes, individual page counts, and the final page total while arranging the source documents.
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Document tool · Browser private
Merge PDF
Arrange multiple PDF documents and combine every page into one clean file, without sending sensitive documents to a server.
PDFs never leave your browser
PDF file order
Add at least two PDFs to build one document
Drop PDF files here
Combine up to 20 PDFs. Maximum 75 MB per file and 200 MB for the full batch.
Password-protected PDFs are not supported
How it works
One ordered PDF in three steps.
The file list is the page sequence: Toolkit copies every page from top to bottom and builds a new document locally.
- 01
Add your PDFs
Choose or drop in two or more PDF files. Each document is checked and its page count is shown before merging.
- 02
Set the order
Drag files into place or use the accessible arrow controls. Every page follows the source-file order you choose.
- 03
Merge and download
Create one PDF locally, then download it with your preferred filename. No document is sent to Toolkit.
Built for document work
Predictable merging, with privacy by default.
Original page geometry
Portrait, landscape, and mixed-size pages retain their dimensions and order in the merged output.
Private browser processing
Source files are read and combined on your device. They are never uploaded to a server or retained by Toolkit.
Merge PDF questions
Privacy, limits, encryption, and document features.
How do I combine several PDF files into one?+
Add at least two PDFs, arrange them in the order you want, choose an output filename, and select Merge & download. All pages from the first file are followed by all pages from the second, and so on.
Are my PDF files uploaded?+
No. File validation, page counting, merging, and downloading happen locally in your browser. Refreshing or closing the page clears the selected documents.
Will page sizes or orientations change?+
No. Each copied page retains its original dimensions, rotation, and visual content, so A4, Letter, portrait, landscape, and mixed-size documents can share one output file.
Can I merge password-protected PDFs?+
Password-protected or encrypted PDFs are not supported. Unlock a copy in software you trust before adding it here.
Will bookmarks, forms, or digital signatures still work?+
Visible page content is preserved, but document-level features such as bookmarks, attachments, interactive form structures, and digital signatures may not survive merging. A digital signature is generally invalidated whenever its PDF changes.
How large can the merge be?+
You can combine up to 20 files, each no larger than 75 MB, with a maximum source batch of 200 MB. Very complex PDFs may still require more memory than a mobile browser can provide.
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