I have a PDF file that should have attachments but I don't see them in the attachment panel and I can't click on the "Add Attachment", "Delete Attachment" and "View Attachment". The PDF file in question is 5Mb and I have similar application forms in PDF format with attachments that are approximately the same size, while the same application form without attachment is less than 1Mb. There doesn't seem to be any restriction to the document so I'm not sure what's going on... I'm using Adobe Acrobat IX Pro. Help, please? Thank you!