> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/web/compare-files/samples.md).

# Code sample for comparing PDFs using JavaScript

Discover a code snippet for diffing PDFs using JavaScript. Learn how to compare documents and display pixel differences effectively. Explore the demo and source code. The Apryse Web SDK streamlines se

#### Semantic Overlay

Sample code following the Semantic Text Compare Showcase demo - Compare changes in semantic categories, such as headers, paragraphs, numbers, and generate a document with a summary of differences for easy review.

<a href="/web/get-started/samples/showcase-demo-semantic-text-compare.md" class="button primary">View Source Code</a><a href="https://showcase.apryse.com/semantic-text-compare" class="button primary">Launch Demo</a>

#### Compare by Image Overlay

Sample code to create the Compare by Image Overlay Showcase demo - The simplest way to programmatically compare 2 files either by converting the two documents to images and lay them on top of each other for a pixel-by-pixel comparison.

<a href="/web/get-started/samples/showcase-demo-compare-files.md" class="button primary">View Source Code</a><a href="https://showcase.apryse.com/compare-files" class="button primary">Launch Demo</a>

#### Difference Compare - 3 Panels

Shows how to render three synchronized panels where the middle panel shows pixel differences between the two documents.

<a href="/web/get-started/samples/diff.md" class="button primary">View Source Code</a><a href="https://sdk.apryse.com/samples/web/samples/advanced/diff/" class="button primary">Launch Demo</a>

####


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