Adobe Acrobat 7 Professional - Manual (Page 323)

Signing Adobe PDF documents in a web browser
To sign a PDF document on the web, the document must contain an empty signature field.
When you click a signature field, a Sign button appears rather than the Sign And Save and
Sign And Save As buttons, which appear when you sign a document directly in Adobe
Acrobat. When you sign a document in a browser, only the incremental portion of the file
is saved to your hard drive.
To sign a document in a web browser:
1. From the Sign menu on the Tasks toolbar, choose Sign This Document, or click a
signature field, and then follow the steps described in Signing Adobe PDF documents in
Acrobat .
2. To retain a copy of the signed document, click the Save A Copy button on the File
toolbar.