, annotate, and share PDF documents with highlighting, notes, and comment features. Search text within files and adjust page layouts. Export pages as images or other formats. Sync documents across devices and organize files into folders.
Measure network performance by testing TCP and UDP speeds in and modes. Conduct bidirectional and reverse tests across Wi-Fi, cellular, or LAN. Validate ISP or VPN changes and identify bandwidth bottlenecks.
Generate strong passwords with customizable security criteria. Create memorable passphrases and unique UUIDs. Produce secure PIN codes and manage cryptographic keys. Export generated data in various formats.