PdfKit · Guide
Merge PDFs without uploading
Combine contracts, scans, or slide decks into one file on this device. PdfKit does not send the documents to a server.
- Open Merge and drop two or more PDFs, or start with the sample.
- Each page appears as a thumbnail. Drag cards to reorder, or use the arrows on a phone. Remove a page with ×.
- Download merged.pdf. The new file is built in this tab.
Why this stays private
Upload-based merge tools copy your PDF to someone else’s disk so a server can concatenate pages. PdfKit reads the file with the browser’s file picker, copies pages locally, and offers a download. Closing the tab clears it from memory.
Limits worth knowing
Stay under 15 files, 40 MB each, and 200 pages per file. Phones have less memory — a handful of short PDFs is safer than a 150-page scan. Password-protected files cannot be opened here.