Page 8 - Ipad Guide
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Finally the last option allows you to markup the pdf. This is helpful to take notes or draw diagrams, but is HIGHLY RECOMMENDED NOT TO DO. The problem is if you erase it erases everything including the original text. PDFViewer is a Much better app for this. 最后一个选项允许您标记pdf。 这有助于记笔记或绘制图表，但强烈建议不要这样做。 问
题是，如果您擦除它会擦除包括原始文本在内的所有内容。 PDFViewer 在此是一个更好 的应用程序。
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