Combine multiple PDF files into one
Combine multiple reports into one
Merge split scanned files
Combine chapters into one
Combine works into single PDF
Since processing is done in the browser without going through a server, there is no server-side limit on file count. However, the more files there are, the more browser memory is used, so merging within 20 files is recommended for smooth processing.
Yes. You can freely rearrange the order by dragging each item in the file list. When you click the merge button, the PDF is created in the order shown on screen.
Encrypted PDFs may be difficult to read directly in the browser. For files with a password set, please unlock them first before attempting to merge. Errors may occur in some cases.
The size of the merged PDF is similar to the combined size of the original files, and may decrease slightly due to some optimization. Image and font data are preserved at original quality.
PDF merging is useful when you need to bundle multiple contract attachments into one, or consolidate monthly reports into an annual report. For portfolio work, organizing individual files into a single PDF makes submission and sharing much more convenient.
Before merging, check that each PDF's page orientation (landscape/portrait) and size are consistent for a cleaner result. Also, removing unnecessary pages with a PDF split tool beforehand can reduce the final file size.
Numbering your filenames in advance to set the sort order makes merging easier. For example, naming files like '01_cover.pdf', '02_body.pdf', '03_appendix.pdf' lets you confirm the correct order at a glance without dragging.