Sample Files by Technology Channel
Sample text file, exactly 1,024 bytes (1 KiB).
technologychannel.org

A good test file is boring in the best possible way. It opens everywhere, it is exactly what its name says, and it behaves the same way every time you use it. When a bug appears, you want to be sure the problem is in your code and not in a half-broken file you found somewhere online. That is why every file in this collection is generated from scratch, checked after it is written, and labelled with the details that matter: size, dimensions, duration, page count or row count.

Good test files also come in families. A single PDF tells you that your viewer can open a PDF; a family of PDFs tells you how it copes with one page and a hundred pages, with a few kilobytes and ten megabytes, with plain text, scanned images, form fields and passwords. Testing across a family is how you find the edges of a system before your users do.

Finally, a good test file is honest about what it contains. Real documents carry pe