Why | The one-liner | Presets | Use it in every test | Where the diff images go | Reviewing changes | Continuous integration | Variants or the cross_platform preset?

Introduction | Installation | System Requirements | Basic Usage | Check Configuration | Compare Images | Generate Diff Images | Advanced Options | Threshold | Antialiasing | Ignore Regions | Batch Processing | Directory Comparison | Accessor Functions | Batch Summary | Column Reference | Parallel Processing | HTML Reports | One-Liner Workflow | Approving Changes | Viewing a Diff | CI Integration | CI Outputs | Working with magick | Low-Level API | Binary Management | Install or Update the Binary | Custom Binary Path | Faster comparisons with npm installs | Cache Management | Visual Regression Testing with testthat | Testing Plots | Snapshot Testing with expect_snapshot_image() | Diff Images on Failure | Comparison with vdiffr | For Validated Environments | Audit records

Why compare PDFs visually? | Comparing two PDF files | Different numbers of pages | Different page sizes | Comparing whole directories | Reports and CI | Ignoring dynamic content | Choosing the resolution | RTF and DOCX outputs | Limitations

Screenshot a page | Screenshot an htmlwidget | Compare with a baseline | As a testthat snapshot