Please do not hesitate to use e-PDF to Image Converter to convert password protected and change JPEG quality.
e-PDF to Image Converter enables you to convert PDF files to various image files through command line on Windows platforms. Besides, this software supports editing image properties, e.g., image size, image resolution, image color depth, etc.. Moreover, this software is smart and smaller, which only occupy a little space in your computer, and of course, it enables you to use multiple parameters to do it. To know more info, just experience e-PDF to Image Converter by yourself.
And the following paragraphs tell you how to use this software to convert password protected PDF file to JPEG file and change JPEG quality on Windows platforms.
Step1. Run Command Prompt window
Click hotkey Windows + R to open Run dialog box on screen, and then, type cmd.exe and click OK in pop dialog box, and then, command prompt window could be opened on screen directly.
Step2. Type command line and parameters to process conversion immediately
Then, in opened command prompt window, please refer to the following command line examples to reach your own conversions:
pdf2img.exe –opw 123456 –upw 654321 –quality 98 C:\in.pdf C:\out.jpg
where you may need to know:
- -opw <string>: for typing owner password (for encrypted files)
- -upw <string>: for inputting user password (for encrypted files)
- -quality <int>: set quality of JPEG format, from 0 to 100
- pdf2img.exe: call executive file “pdf2img.exe” for
- C:\in.pdf: specify input PDF file
- C:\out.jpg: specify output JPEG file
After all prepared work is done like above, please do not hesitate to click enter in command prompt window to convert password protected PDF file to JPEG file and change JPEG quality directly. And sooner, JPEG files with changed quality are added into destination folder automatically.
At last, after you produce JPEG with changed quality by yourself, if you want to remove watermarks on produced JPEG files, please do not hesitate to use full version of e-PDF to Image Converter.