嵌入附件

You can embed multiple files of different kinds, such as spreadsheets, images, documents, and raw data files. They travel inside the PDF as one package, which keeps related materials together so nothing gets separated when you share the document.

They're stored in the PDF's attachments panel, accessible in standard readers like Acrobat that support embedded files. Recipients open that panel to view or save each attached file. The visible pages of your document stay unchanged by the embedding.

No. Attachments are added to the document's internal file structure, not drawn onto the pages, so your layout, text, and formatting stay exactly as they were. The extra files ride along quietly without altering anything readers see on screen.

Bundling everything into one PDF keeps related materials organized and ensures supporting files don't get lost in transit. It's useful for pairing a spreadsheet with a financial report, attaching evidence to a legal filing, or shipping source data alongside a research paper.

Yes on both counts. Embedding happens locally in your browser with no upload to any server, so confidential case files and datasets stay on your device. The tool is free to use with no signup, login, or watermarks.