About PDF Tools
PDF is the document format we exchange most — contracts, reports, resumes, receipts. Yet handling it often hits a "do I need paid software?" wall; Adobe Acrobat runs about $20/month.
JiniTools PDF tools cover the most common jobs — merge, split, watermark — free and without sign-up. More importantly, your PDF never goes to a server, so the "where does my uploaded contract go?" worry disappears.
Under the hood it uses vetted open-source libraries like pdf-lib, and everything runs in browser memory. It works the same on mobile.
What people use it for
Merge several PDFs into one
When attachments arrive split across files, or travel receipts need tidying into one file, drag them into the merge tool and set the order.
Pull only the pages you need
Extract 5 pages from a 200-page manual, or just the pages you must submit, with the split tool.
Watermark documents for sharing
Add a diagonal "Confidential" or company watermark to deter leaks. The watermark tool supports Korean text, opacity, and angle.
Which tool to pick
- Many files into one PDF merge. Drag to reorder.
- One file into many PDF split. Page ranges or every N pages.
- Add a mark PDF watermark (text, diagonal, opacity, rotation).
FAQ
Can it handle password-protected PDFs?
No. Remove the password in a PDF viewer first, then use the tool.
Is there a file-size limit?
Since processing is in-browser, there is effectively no hard limit, but it depends on device memory — roughly 500 MB on a PC, 200 MB on mobile.
Can I reorder pages when merging?
Yes, drag the cards in the merge tool to reorder. Touch is supported on mobile.
How do I confirm nothing is uploaded?
Open dev tools (F12), watch the Network tab, then drag in a PDF — you will see no upload request.
