Merge PDF FAQ — Free Online Combine
How to merge PDFs on ComTools: mixed images/Word, page ranges, privacy, and batch size limits.
How to merge
- Open Merge PDF — Go to https://comtools.cn/pdf-merge
- Add files — Drop PDFs, images, or Word files
- Order & options — Drag to reorder; set ranges/rotate/blanks
- Merge — Start merge and download the result
FAQ
How do I merge PDFs online for free?
Open https://comtools.cn/pdf-merge, drop files, reorder, then merge. No signup.
Can I mix images and Word with PDFs?
Yes. JPG/PNG and DOC/DOCX are converted to pages and merged in order.
Can I merge only some pages?
Yes. Enter ranges like 1-3,5 on a file card.
Encrypted PDFs?
Unlock with PDF Unlock first, then merge.
Are files stored?
No. Temporary processing only; not stored permanently.
File size limit?
About 100MB per batch; compress large scans first with /pdf-compress.