PDF Merge — Combine Up to 20 PDFs With Drag-and-Drop
Merge multiple PDF files with drag-and-drop sorting, supporting up to 20 files.
Upload PDF (Max 20, Total 300MB)
Drag & Drop files here, or
PDF only, Max 300MB, Max 800 pages
Points Deduction Info
- • PDF Merge：1 pt/time
- • Free use of Format Conversion, PDF Split/Merge during subscription.
PDF merge with drag-and-drop ordering
Combine up to 20 PDF files into a single document with drag-and-drop reordering. KolmoPDF processes the merge in your browser session, supports files up to 300 MB total, and is free for paid subscribers.
Key capabilities
- Drag-and-drop reordering before merging.
- Up to 20 PDFs in a single operation.
- Up to 300 MB combined file size.
- Original page quality preserved without re-rendering.
- Bookmarks and metadata maintained from the first source file.
Common use cases
Researchers combine chapter PDFs into a single thesis draft. Legal teams bundle exhibits into a single filing package. Students assemble multi-source study guides. Operations teams stitch together monthly report PDFs.
Frequently asked questions
How many files at once?
Up to 20 files per merge operation, with a combined limit of 300 MB.
Is it free?
Free for paid subscribers; 1 credit per merge for free users.
Can I reorder pages within files?
You can reorder files; for page-level reordering use the PDF Split tool first.