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带水印的PDF文档见过很多了,一直不知道是如何加上去的。今天查到了
http://groups.google.com/group/c ... p;start=0&num=3
- Use pdftk with the background option to create the watermarked version.
- Run pdftk like this:
- $ pdftk article.pdf background watermark.pdf output article_with_watermark.pdf
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