PDFjsSharp

Brings PDF.js to .net

Feature

• Renders each page of a PDF to PNGs

Dependencies

get

• NodeJs
  • node 18 or 20 x64 (older node versions are supported by older PDFjsSharp versions)

HowTo use

• Install nuget package PdfjsSharp

using var rasterizer = new Rasterizer();
var actualImages = await rasterizer.ConvertToPngAsync(@"../../../SourceTest.pdf", actualImagePath);
Assert.Equal(1, actualImages.Count);

Development

get .net 8 sdk

Upgrade npm packages

• npx npm-check --update-all --skip-unused

Steps to update node_modules.win.*.zip

 cd .\PdfjsSharp\
 nvm install 18;nvm use 18;rm -R .\node_modules\;npm install --omit=dev;rm .\node_modules.win.node18.zip;Compress-Archive -LiteralPath .\node_modules\ -DestinationPath .\node_modules.win.node18.zip;Compress-Archive -Update .\Rasterize.mjs .\node_modules.win.node18.zip
 nvm install lts;nvm use lts;rm -R .\node_modules\;npm install --omit=dev;rm .\node_modules.win.node20.zip;Compress-Archive -LiteralPath .\node_modules\ -DestinationPath .\node_modules.win.node20.zip;Compress-Archive -Update .\Rasterize.mjs .\node_modules.win.node20.zip

Ubuntu 22.04

#In case you have no nvm
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/master/install.sh | bash 
exit
nvm install 20
sudo apt install dotnet8 zip

Steps to update node_modules.linux.node*.zip

nvm install 18
nvm use 18
rm -R ./node_modules/ 
npm install --omit=dev && rm node_modules.linux.node18.zip && zip -r node_modules.linux.node18.zip node_modules && zip -g node_modules.linux.node18.zip Rasterize.mjs
nvm install 20
nvm use 20
rm -R ./node_modules/ 
npm install --omit=dev && rm node_modules.linux.node20.zip && zip -r node_modules.linux.node20.zip node_modules && zip -g node_modules.linux.node20.zip Rasterize.mjs