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How-to

Short answers to one job at a time.

How-to7 min read

Convert HTML to Image in Elixir

Render HTML as a PNG in Elixir with ChromicPDF, decode its Base64 output, and handle browser setup, options, deployment, and common errors.

How-to9 min read

Convert HTML to JPEG in C#

Render HTML as JPEG in C# with CoreHtmlToImage, PuppeteerSharp, or Playwright. Compare setup, control, quality, and a hosted API option.

How-to10 min read

Upload Screenshots to S3-Compatible Storage

Upload screenshots directly to S3-compatible storage with a backend-generated presigned URL. Learn secure browser PUTs, CORS, multipart uploads, and fixes for common errors.

How-to11 min read

How to Create Comparison Graph Images

Build fair, readable comparison graphs and export them as images with practical workflows for spreadsheets, Python, JavaScript, Canva, and Datawrapper.