Add Attachments

Embed files inside a PDF as attachments. Free online — no sign-up, no watermark.

Fix, annotate and polish PDFs without heavyweight desktop apps — add watermarks, page numbers, headers, signatures and form fields, crop pages, fill forms and adjust colors right in the browser.

Accepts .pdf files. This tool runs entirely in your browser — your file never leaves your device.

How to use Add Attachments

1. Upload your file — drag and drop it onto the page or click to browse.
2. Adjust the tool's options if needed, then run it.
3. Download the finished file straight to your device.

Frequently asked questions

Is Add Attachments free to use?

Yes — completely free, with no sign-up and no watermark on the output.

Is my file safe?

This tool runs entirely in your browser — your file never leaves your device.

What files does Add Attachments accept?

Accepts .pdf files.

Related tools

Add Watermark Add Stamp Page Numbers Header & Footer Sign PDF Crop PDF

LoveYou2PDF — 141 free online PDF and document tools that work in your browser.