Merge PDF with no upload
Merge PDF files without uploading them to a cloud converter. IntactPDF runs entirely in your browser.
Cloud PDF sites like Smallpdf and iLovePDF are convenient — and they typically upload your documents to a server. For contracts, IDs, and HR packs, that is a real trust cost.
IntactPDF merges PDFs with pdf-lib inside your browser. Open DevTools → Network while you merge: you should not see a PDF POST to our origin for processing.
There is no daily free-task quota and no watermark. There is no account and no paid upsell on the tool itself.
How to merge privately
Open the Merge tool, drop two or more PDFs, click Merge, and download. Keep originals until you confirm the output.