iLovePDF

iLovePDF is a direct competitor to Smallpdf, offering a comprehensive and user-friendly web-based suite of PDF tools with a strong focus on conversion, organization, and optimization. Its clean, colorful interface makes tasks like merging, splitting, compressing, converting to/from Office formats, and adding watermarks or page numbers very accessible. It also provides basic editing and e-signing capabilities. Like its peers, it operates on a freemium model with a generous free tier subject to file size and usage limits.

iLovePDF distinguishes itself with well-designed mobile apps for iOS and Android, extending its utility to smartphones and tablets. It is less of a full editor and more of a powerful utility belt for managing and transforming PDF documents. It's ideal for users who need reliable, simple online tools for common PDF chores across all their devices.