A pdf owner password is the password used to set document restrictions in pdf files. As of the latest PDF version, document restrictions include printing, changing the document, document assembly, content copying, content copying for accessibility, page extraction, commenting, filling of form fields, signing, and creation of template pages. In Adobe Acrobat, the pdf owner password is called the change permissions password. Therefore, setting an owner password allows you to protect your copyrights. And if you want to set particular permission of your file, for example，setting the permission of high resolution printing of a pdf file, you could use Advanced PDF Tools Command Line. Just add -S “-permission=128”to the command line of setting owner password, you can finish setting the permission of high resolution printing of a pdf file. See details below.
First step—Downloading
Follow this link you will obtain Advanced PDF Tools
https://www.verypdf.com/pdfinfoeditor/advanced_pdf_tools_cmd.zip
The whole package is just of 3.04 MB, making the download swiftly, do remember to extract it, for it is a zipped package.
Second step—Launching
You are bound to launch MS-DOS command prompt window. Because the command line is bound to be operated under the MS-DOS environment. The procedure is easy, and the following pictures will guide you.
1) click “start” and then go to “Run”
2) input cmd into the following
3) press “ok”, you will find MS-DOS command prompt window popping up
Third step—Inputting
input command line to set the permission of high resolution printing of a pdf file
it goes below
pdftools.exe -i C:\*.pdf -o D:\*.pdf -S ownerpwd=love -S keylen=2 -S permission=128
where
- -i is to specify a pdf filename or a directory for input,
- -o is to specify the pdf file name for output,
- -S ownerpwd=love to encrypt owner password as love,
- -S keylen=2 refers to 128 bit AES encryption (Acrobat 7 or higher),
- -S permission=128: Allowed print the document with high resolution.
when the input is done, press “enter” key, you will see
Fourth step—Checking
open the file to check the result and you can print the pdf file with high resolution.