Which PDF converter features do you use most?

One challenge with online PDF converters is figuring out which features are truly useful in everyday situations. When I convert files, I often struggle with the quality or lose formatting on key elements, which can be frustrating. I’ve noticed some converters also slow down when handling larger documents or multiple files. My question is, which PDF converter features do you find yourself using the most that actually make your tasks easier? For example, do you rely more on batch conversions, file compression, or maybe converting into editable formats? Any personal insights on tools or specific features that really stand out during your work or study sessions would be helpful. I’m also curious about ease of use and whether some features save a lot of time compared to others.