Howto diff pdfs on cli

Howto diff pdfs on cli - on windows

Pixel Diff

Get ImageMagick cli tool

Windows:
```
choco install imagemagick
```

Convert every pdf page to a rastrized image, use different directories

magick convert inputA.pdf output%d.png

magick convert inputB.pdf output%d.png

Use winmerge to compare the output

Text Diff

Get pdftotxt

http://www.xpdfreader.com/download.html

create inputA.txt file

xpdf-tools-win-4.03\bin64\pdftotext.exe .\inputA.pdf

create inputB.txt file

xpdf-tools-win-4.03\bin64\pdftotext.exe .\inputB.pdf

Use winmerge to compare the output

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