Is there a file size limit?

Only what your browser can hold in memory. Very large scans may be slow on older machines.

Are my files uploaded?

No. The merge happens in your browser and nothing is sent to a server.

Can I change the order?

Yes. Drag the files into the order you want before merging.

organize

Merge PDF Files

Combine several PDFs into one document, in any order. Runs entirely in your browser.

Runs in your browser

How it works

Merging joins the pages of each file end to end into a single document. Page content, fonts and images are copied across unchanged, so the result looks the same as the originals. Bookmarks and form fields from the source files are not carried over yet.

Related tools

Split PDF

/split-pdf

Extract Pages

/extract-pdf-pages

Reorder Pages

/reorder-pdf-pages

Questions

Is there a file size limit?: Only what your browser can hold in memory. Very large scans may be slow on older machines.
Are my files uploaded?: No. The merge happens in your browser and nothing is sent to a server.
Can I change the order?: Yes. Drag the files into the order you want before merging.