Reports
Include the supporting data
Attach the spreadsheet or source data behind a report.
A useful PDF task, made simple
Attach Files to PDF.
Keep supporting files together with your PDF.
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Use the page controls to inspect your document.
100%
Your PDF with attachments is ready
Download the PDF to keep its pages and embedded attachments together.
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Your file stays on your device. Nothing is uploaded.
PDF
How to attach files to a PDF
- 01
Open your PDF
Choose the PDF that will contain the files, or try the sample.
- 02
Add files
Choose supporting files and remove any you do not need.
- 03
Download the PDF
Save the updated PDF with its embedded files.
Attach companion files to a PDF
Add supporting files such as source data, images or spreadsheets inside a PDF while keeping its pages. Review the file list and preview the PDF, then download a separate copy with the attachments. Processing stays in your browser.
QUICK VIDEO TUTORIAL
How to attach files to a PDF
Keep the document and its companion files together.
English narration
Watch the video
What can you keep with a PDF?
Design handoff
Bundle source files
Keep editable assets or specifications with the PDF used for review.
Project delivery
Keep related files together
Add companion documents as attachments without inserting extra pages.
Features and controls
Add a PDF and companion files
Select a PDF, then choose files to embed.
Prepare the PDF
Open one PDF and choose up to 20 files in Settings. Review the list and remove anything unnecessary. Each file is limited to 25 MB, with a combined 50 MB limit.
Preview pages before saving
Keep the document while adding file attachments.
What changes
Browse the PDF pages in the preview. The new PDF retains existing attachments and page content while adding your files. Potentially active PDF actions are removed.
Download the PDF with attachments
Save a copy and verify it in a compatible reader.
Reader support
Choose Start, then Download. Many PDF readers show attachments in a paperclip panel; browser support varies. Resaving may invalidate an existing digital signature.
Supported files & processing
- Input
- Output
Open one PDF up to 50 MB and 750 pages. Additional output, memory and processing limits can apply to complex documents.
Processing takes place on your device without uploading the document. Download your result before closing the page; keep the original separately.
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FAQ
A few useful answers
Know what to expect before you start.
On your deviceWhich files can I attach?
Choose up to 20 files, at most 25 MB each and 50 MB combined. The finished PDF is capped at 100 MB. Reader support for embedded files varies.
Will existing PDF attachments remain?
Yes. The tool keeps existing embedded attachments and adds the selected files to a separate PDF copy. It also removes potentially active PDF actions.
What happens to digital signatures?
Saving a new PDF generally invalidates an existing cryptographic signature. Keep the signed original when that signature matters and verify the result in a compatible reader.
Are my files uploaded for this tool?
Document processing and PDF generation run in your browser on your device. This tool does not upload the document for processing. Save your result before closing or reloading the page; the original file on your device is unchanged.
