PDFSlick Sync

Drop-in SDK adding real-time collaboration to PDF viewers in an app

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PDFSlick Sync is a drop-in PDF viewer SDK that adds real-time cursors, comments, and annotations to an app's PDF documents with a few lines of code, using edge-native sync under 50ms latency and zero document storage on PDFSlick's side. It offers a free tier and paid plans.

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Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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