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Building a 600-DPI PDF to JPG converter in Rust: the megapixel clamp that saved production
Published on July 31, 2026By DEV Community
If you need to convert PDF to JPG at 600 DPI for print, archival, or high-res extraction, the short answer is: it works, but only if you clamp the output. A 600 DPI conversion on a large PDF page can produce a multi-gigabyte JPG per page. That crashes any server without a memory budget. I hit this in production on Convertify and had to build a fix that stayed close to the user's request while never letting the process explode. This post walks through the clamp function I wrote in Rust + libvips,
Read the full article: https://dev.to/serhii_kalyna_730b636889c/building-a-600-dpi-pdf-to-jpg-converter-in-rust-the-megapixel-clamp-that-saved-production-47i9
Source: DEV Community