Smallpdf

Smallpdf is a leading web-based PDF suite that prioritizes simplicity, accessibility, and solving specific, common PDF problems quickly. Its clean, guided interface makes tasks like compressing, converting (to and from PDF), merging, splitting, and e-signing incredibly straightforward for non-technical users. Since it runs in a browser, it works on any operating system without installation, and files are processed on secure servers. The free tier is generous for occasional use, though with file size limits and processing delays.

Its Pro subscription unlocks batch processing, higher priority, and more tools. Smallpdf is not a full-featured desktop editor for heavy text manipulation or complex form design; its strength is in making essential PDF utilities approachable and reliable. It's the go-to solution for quick jobs, for users on shared or locked-down computers, or for those who only occasionally need PDF tools.