11PDF

Add Attachments to a PDF

Bundle supporting files directly inside your PDF so everything arrives as one package: raw spreadsheets behind a report, source images behind a design doc, or datasets behind a paper. The first file you upload is the PDF; every file after it is embedded as a named attachment that recipients can open from the attachment panel of any standard PDF reader. Processing happens entirely on your device — nothing is uploaded.

Choose files ordrag & drop here

.pdf .txt .csv .png .jpg .zip .json .xml .md · multiple files allowed

Processed locally in your browser — your files never leave your device.

How to add attachments

  1. Upload the PDF first, then the files you want to attach.
  2. Optionally give the attachments custom comma-separated names.
  3. Download the PDF with all files embedded inside.

Frequently asked questions

Which file types can I attach?

Virtually any type — text, CSV, images, ZIP archives, JSON, XML and more. The bytes are embedded as-is, so the attachment is bit-identical when extracted.

Where do recipients see the attachments?

In Adobe Acrobat, Foxit, and most desktop readers they appear in the attachments panel (paperclip icon). Browser-based viewers may not show them, so mention attachments in the document too.

Does adding attachments change the visible pages?

No. Pages, text, and layout stay exactly the same — only the embedded file list is added to the document structure.