问题 提问于 2012年12月12日
I have Windows 7 and Windows Live Mail. My mother has Windows Vista and Windows Mail. She scanned a document and saved it as a pdf. She tried to send it to me as an attachment to an e-mail. The attachment arrived, Expert PDF Reader opened it, but it was blank. I tried to research why it was blank and informed that my security settings kept some attachments from opening as a security measure. Where do I find my security settings and what do I do to open my mother's attachment? Is there anything else I need to know about this issue?
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