How to Convert PDF to High Quality JPG on Windows 10 is shown in this video. To convert PDF to JPG free you can use the website shown in the ... ... <看更多>

Assuming original_pdf is content of pdf file, e.g.: original_pdf = File.open('from_file.pdf', 'rb').read. Then apply quality options in block of method ... ... <看更多>

Perhaps you need to use -density to do the conversion at a higher dpi: convert -density 300 file.pdf page_%04d.jpg. ... <看更多>