Edit PDF Attachments — List and Remove Embedded Files
List all embedded file attachments in your PDF and remove the ones you don't need. Select with checkboxes and save — the PDF is rebuilt without the selected attachments. All processing stays in your browser.
Key Features
Attachment Listing
Automatically list all embedded file attachments in your PDF with their names, sizes, and page association after upload.
Remove Unwanted Attachments
Select attachments to remove using checkboxes. The PDF is rebuilt without the selected attachments while preserving all other content.
Easy Selection Tools
Use Select All or Select None to quickly manage multiple attachments. The counter shows how many are selected for removal.
100% Private & Secure
All processing happens locally in your browser using CoherentPDF WASM. Your PDF files never leave your device — no uploads to any server.
No Installation Required
No software to download or install. The tool runs entirely in your browser — works on any device with a modern browser.
About This PDF Attachment Editor
Our PDF Attachment Editor lists and manages the embedded file attachments in your PDF documents using CoherentPDF, a professional PDF library compiled to WebAssembly. After uploading a PDF, all embedded attachments are automatically listed with their names, sizes, and page association. You can select which attachments to remove using checkboxes, with convenient Select All / Select None options. When you save changes, the PDF is rebuilt by re-attaching only the attachments you chose to keep, effectively removing the selected ones. All other document content, pages, text, and formatting are preserved. All processing stays local in your browser — no data is ever uploaded.
How to Edit PDF Attachments — Step by Step
Managing PDF attachments with our tool is simple:
Upload Your PDF
Drag and drop a PDF file onto the upload area. All embedded attachments are listed automatically.
Review Attachments
Review the list of attachments with their names, sizes, and page association. Use Select All or Select None to manage them.
Select to Remove
Check the attachments you want to remove. The button shows how many are selected.
Save & Download
Click Remove Selected to rebuild the PDF without the selected attachments. Download the modified PDF with all other content preserved.
Important Notes
This tool removes embedded file attachments by rebuilding the PDF with only the kept attachments re-attached. All other document content is preserved. Attachments that are not selected for removal are kept intact. If a PDF has no attachments, a notice is shown. Encrypted PDFs or PDFs with structural issues cannot be processed.