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PDF Occlusion

Turn any PDF into a spaced-repetition memory test

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PDF Occlusion turns the notes and slides you already use into active-recall practice. Upload a PDF, draw boxes over the facts you need to remember, and review each answer while keeping the full page visible for context. Rate each recall Again, Hard, Good or Easy and FSRS schedules the next review. Your PDFs, folders and progress sync across web, desktop PWA and mobile.

PH · launched Nov 14, 2026 · 1 upvote (top 65%) · 0 views

Niche: digital flashcard apps · 81 launches, 8 in the last 7 days · Explore this niche →

Category and tags
  • Education
  • Workflow automation
  • B2C
  • Productivity
  • Education
  • Online Learning

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More like this: all 81 launches in digital flashcard apps →

Could you build this?

Yes PDF rendering with pdf.js, region drawing, and spaced repetition via the open-source FSRS algorithm are all available as libraries, so the work is mainly UI and state management.

Competitors

Other products that read as similar to this one : 498 launches clear the similarity bar, closest 8 shown.

Attention rank: #160 of 499 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 327 days after the earliest competitor.

  • AI Study Sheet · ph · 2026-09-19 · 3 upvotes · similarity 0.52
  • PDF Batch Desk · ph · 2026-09-15 · 1 upvotes · similarity 0.50
  • Recalled.fyi · ph · 2026-10-19 · 2 upvotes · similarity 0.49
  • Diane · ph · 2026-10-20 · 1 upvotes · similarity 0.48
  • Fichea · ph · 2026-09-12 · 2 upvotes · similarity 0.48
  • PDF Compare · ph · 2026-10-17 · 2 upvotes · similarity 0.48
  • GoodOff · ph · 2026-11-04 · 1 upvotes · similarity 0.48
  • Memberry · ph · 2026-10-27 · 1 upvotes · similarity 0.46

Related data

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.