Add Attachments
Embed any files inside a PDF.
About this tool
Add Attachments embeds files of any type inside a PDF — spreadsheets, source images, CAD files, contracts in Word format, anything. The PDF looks the same, but readers like Adobe Acrobat, Foxit and most browsers show the files in their attachments panel.
This keeps supporting material together with the document it belongs to: the Excel workbook behind a financial report, the original photos behind an inspection, or the editable source of a brochure.
Files are embedded locally in your browser, with their names, types and an optional description. Nothing is uploaded.
Engines: pdf-lib
How to use
- 1
Upload the PDF you want to attach files to.
- 2
Choose one or more files to embed and add an optional description.
- 3
Click Attach files and download the PDF.
Use cases
Reports with source data
Attach the spreadsheet used to build the charts so reviewers can check the numbers.
Project hand-over
Bundle drawings, photos and specifications inside the hand-over PDF.
Invoices with evidence
Embed delivery notes or timesheets inside the invoice PDF.
Frequently asked questions
Which file types can I attach?
Any type. The file is stored as-is inside the PDF.
How do readers open attachments?
Most PDF readers have a paperclip or attachments panel. You can also use Extract Attachments to save them again.
Does attaching files make the PDF bigger?
Yes, by roughly the size of the attached files (they are compressed where possible).