2020年5月8日
各类文件的互转
摘要： 各类文件 -> pdf： Adobe Acrobat Pro 的 File -> Create -> Create from Files 阅读全文
posted @ 2020-05-08 02:11 ChrainY 阅读(126) 评论(0) 推荐(0)
Convert a PDF to greyscale on the command line.
摘要： I have a colour PDF file, and I'm going to print it out and then photocopy it in black and white. I'd like to know what it's like in B&W before photoc 阅读全文
posted @ 2020-05-08 01:09 ChrainY 阅读(122) 评论(0) 推荐(0)