Red Sheet: PDF Study App

◆ All-in-One PDF Memorization App with Red Sheet Study

Turn your PDFs, notes, textbooks, handouts, and images into powerful study materials.
This app helps students memorize faster by hiding and revealing important parts of their own documents.

Import PDF files, photos, scanned notes, class handouts, worksheets, and study materials, then create memorization blocks directly on the page.
It works like a digital red sheet, flashcard maker, and PDF study tool in one simple app.

◆ PDF Memorization Made Simple

・Import PDF files and study directly from the page
・Hide words, definitions, formulas, diagrams, and answers
・Tap to reveal hidden areas while reviewing
・Use red sheet style memorization on PDF pages
・Study textbooks, school handouts, exam materials, and notes
・Create your own PDF memorization notebook

If you already study with PDFs, this app turns them into active memorization tools.

◆ Red Sheet Style Study for PDFs and Images

Use memorization blocks to cover the parts you want to remember.
Place blocks over text, formulas, diagrams, definitions, answers, or explanations.

・Hide text like using a red sheet
・Reveal answers by tapping
・Create blocks anywhere on a PDF or image
・Adjust block size by dragging the edges
・Change the color and style of blocks
・Use blocks for notes, textbooks, worksheets, and scanned documents

This is useful when you want to memorize from your own materials without rewriting everything into separate flashcards.


◆ Smooth Vertical Review for Memorization

Review multiple PDF pages and images smoothly.
Vertical scrolling makes it easy to study long documents, like moving a red sheet from top to bottom.

・Scroll vertically through study pages
・Review many PDF pages at once
・Memorize photos and handouts continuously
・Swipe between pages and cards
・Add more images when needed
・Study at your own pace

Useful for test prep, school study, certification exams, language learning, and daily review.

◆ Useful Study Tools

・One-tap show and hide for fast review
・Multiple memorization blocks for one page
・Auto-align blocks for cleaner layouts
・Zoom in with two fingers to study small text
・Hidden areas stay aligned even when zooming
・Add memo text to support memorization
・Hide memo text for self-testing
・Organize study decks by title or subject

Create separate study materials