Red Sheet: Line Memorization

Digital Red Sheet Memorization App for PDFs, Photos & Flashcards Memorize faster with “hide & reveal” study sheets — anywhere, anytime. Turn any PDF or image into a red-sheet style memorization sheet. Hide only what you need, scroll smoothly across pages, and review on the go — even on the train. Key features - Hide by color (red, blue, orange, and more) - Flexible blocks: adjust shape & size to hide any area precisely - Vertical scrolling: memorize across multiple pages without flipping - Lighten the hidden color so black text stays readable while memorizing - Study together: original colors to hide + blocks you create All-in-one memorization - PDF memorization: import PDFs and build your own red-sheet study book (works even without color) - Photo memorization: hide words from notebook photos, handouts, or whiteboards like a digital marker - Flashcards / word lists: build vocabulary lists and memorize efficiently How it works 1) Import a PDF or add photos 2) Hide what you want to memorize (by color or by blocks) 3) Tap to show/hide and test yourself instantly 4) Scroll and repeat — quick reviews anytime Powerful study tools - One-tap show/hide for self-testing - Create multiple blocks quickly for consecutive items - Auto-align blocks for a clean, organized sheet - Zoom in/out without losing alignment - Swipe to move between images / add new photos easily - (If available) Record audio on a hidden block to memorize pronunciation Great for - Exam prep / test review / entrance exams - Language learning: vocabulary, phrases, grammar - Certifications and professional study - Any subject that needs memorization: definitions, formulas, notes -- Terms of Service https://hidevoicy.com/en/tos Privacy Policy https://hidevoicy.com/en/privacy