Toolstia / PDF merger
Merge PDF files into one
Combine two or more PDFs into a single file. Put them in order, press Merge, and download the result. The files never leave your device.
Drop PDF files here, or click to choose
Up to 30 PDFs. Nothing is uploaded.
How it works
- Drop two or more PDF files.
- Put them in the right order with Up and Down.
- Select Merge PDFs to download the combined file.
How merging works
All pages from each file are copied, in order, into a new PDF. The pages themselves are not re-rendered, so text stays sharp and searchable.
Password-protected files
Protected PDFs cannot be merged. Remove the password in the program that created the file, then try again.
Bookmarks and forms
The merged file keeps the pages, but document-level extras such as bookmarks and some form fields may not carry over.
Privacy
Merging happens in your browser, so contracts, invoices and ID documents are not sent to any server.
Questions
Are my PDFs uploaded?
No. They are read and combined in your browser.
How many files can I merge?
Up to 30 at a time. Very large files depend on your device memory.
Why could a file not be read?
It may be password-protected or damaged. The error message names the file so you can remove it.
Can I merge only some pages?
Not yet. This tool merges whole files.