How Python turns a PDF into a picture

Below for you to share a Python pdf into a picture of the method, has a good reference value, I hope to be helpful to everyone. Come and see it together.

This article records how to use Python to slice a PDF file into a single picture, including environment configuration, version compatibility issues.

Environment configuration (MAC)

Installing ImageMagick

Brew Install ImageMagick

Here is a pit, brew installation is 7.x version, using wand error, you need to install 6.x version.

Workaround:

1. Install the 6.x version

Brew Install Imagemagick@6

2. Unlink 7.x version

Brew Unlink imagemagickunlinking/usr/local/cellar/imagemagick/7.0.7-4 ... Symlinks removed

3. Mandatory Link 6.x version

Brew Link imagemagick@6--forcelinking/usr/local/cellar/imagemagick@6/6.9.9-15 ... Symlinks created

4.export Environment variables

echo ' Export path= '/usr/local/opt/imagemagick@6/bin: $PATH ' >> ~/.bash_profile

OK, the above resolves the ImageMagick version issue.

Install GS

The GS must be installed, otherwise the PDF cannot be converted.

Brew Install GS

Installing Wand

PIP3 Install Wand

I use Python3 here, so I need to use PIP3.

Code implementation

From wand.image import imagedef convert_pdf_to_jpg (filename): With image (Filename=filename) as IMG:  print (' pages = ' , Len (img.sequence)) with  Img.convert (' jpeg ') as converted:   converted.save (filename= ' image/page.jpeg ')

Effect

I will be a book more than 400 pages have been turned out, we can also go to try it.