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tech 21 June 2026

Turn Your PDFs into Scanned Documents: A Handy Tool via CLI or WASM

Discover how the 'make-look-scanned' tool lets you give your PDFs the appearance of scanned documents, whether you're using a CLI or WASM in the browser. A must-have for tech developers and entrepreneurs.

Article inspired by the original source
Show HN: Make PDFs look scanned (CLI or in the browser via WASM) ↗ github.com

Why Make PDFs Look Scanned?

You may have wondered why it might be useful to give a digital PDF the appearance of a scanned document. Whether for added authenticity in administrative documents, security reasons, or simply to meet a client's requirements, this transformation can be very practical.

The 'make-look-scanned' tool, available on GitHub, addresses this need precisely. It allows you to convert your PDFs into files that appear to have been scanned, directly via a Command Line Interface (CLI) or in the browser using WebAssembly (WASM).

Key Features

CLI Usage

The command line approach is ideal for developers looking to automate the process. After installing the tool, it only takes a few lines of code to transform a PDF. Here's an example command:

``bash make-look-scanned --input document.pdf --output scanned-document.pdf ``

This command takes your document.pdf file and generates scanned-document.pdf with a scanned visual effect. Simple, fast, and efficient.

WASM Usage

For web-oriented developers, integrating the tool via WASM allows for direct use in the browser. This offers incredible flexibility for web applications, enabling end users to convert their documents without leaving their browser.

With WebAssembly, you benefit from near-native performance, which is a significant plus for potentially heavy processing tasks like these.

Practical Use Cases

Security and Compliance

In certain sectors, such as legal or finance, it is essential to have documents that appear authentic or compliant with certain standards. Transforming the visual style of a PDF to look scanned can add a layer of credibility.

Process Automation

For companies that manage large volumes of documents, integrating a tool like 'make-look-scanned' into an automation workflow can reduce processing time and costs.

Client Requirements

Sometimes clients specifically request documents that have a scanned appearance. Whether for aesthetic reasons or others, being able to quickly respond to these needs is crucial.

How Does It Work?

The tool uses algorithms to add noise and shading effects to the PDF, creating the illusion of a scanned document. This approach maintains the quality and readability of the text while simulating typical scanning imperfections.

Conclusion

Making your PDFs look scanned has never been so simple and accessible. Whether you're a developer looking to automate this process or an entrepreneur wanting to meet your clients' specific demands, this tool is an ideal solution.

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