bulk converter — validate first, convert second.">
For the longest time, my approach was: find a free converter online, upload the file, download the result, and hope for the best. It worked maybe 80% of the time. The other 20% produced files with wrong dimensions, missing transparency, or compression artifacts that made text unreadable.
The real problem was not the converters themselves. It was that I did not know what I did not know. I was not checking the source file against W3C SVG 1.1 specification (w3.org/TR/SVG11) before converting, so I was feeding malformed inputs into tools that silently produced broken outputs. No error message, just a bad file.
Now I use a two-pass approach. Pass one: validate the source. I check the file against MDN Web Docs on CanvasRenderingContext2D.drawImage() to catch issues before conversion — wrong color space, missing metadata, improper dimensions. Pass two: convert with a tool that preserves everything the source had. Our bulk converter handles pass two without stripping alpha channels or downscaling without asking.
The difference is night and day. I went from a 20% redo rate to essentially zero. Use the two-pass method →
If your source file has a color profile embedded — and most professional design exports do — a generic converter might discard it. The result looks fine on your screen but prints with shifted colors. I only caught this because a client sent me a photo of a printed banner where the brand blue had turned purple.
Now I make sure the converter preserves embedded ICC profiles. It is one of those things you do not think about until it burns you. Then you never forget.