ComPDFKit PDF SDK vs LightTag.io

The Professional PDF SDK for Developers

Developers can integrate PDF Annotations, Format Conversion, Digital Signature, Smart Forms, OCR, redaction, and more capabilities on their applications with our PDF SDK. Our powerful and steady API tools allow developers to bring the functions they want to multi-platform software easily.
Seamlessly enable high-performance PDF viewing, annotating, editing, signing, and more in your apps or any mobile, desktop, web, or server framework.

Location: SINGAPORE, SINGAPORE

Manage your team of annotators with ease

The biggest barrier to NLP projects today is acquiring labeled data. LightTag delivers the tools you need to execute and manage an annotation project with a team. Our annotation interface optimizes annotators work and keeps them engaged. LightTag handles everything needed for a team, from auth to auditing to to analytics, Since the only measure of quality is inter-annotator agreement, LighhtTag automatically assigns work to evaluate that goal.
For project managers, LightTag provides in depth metrics into a projects status, from number of annotations and velocity, to the performance of individual annotators and tagging schemas.