PDF Notes C vs PDFin

PDF Notes C is a sister app of PDF Notes S that excludes cache to reduce CPU, memory, battery usages, and cache storage. PDF Notes C gives you a 2 pages viewer with horizontal/vertical scroll, and cache for fast page turns, and thumbnail scrollbar. PDF Notes C gives you ZIP Preview, Quick Look of documents, images, music, videos, and etc. PDF Notes C gives you Document Browser so that you can organize all your files very easily. PDF Viewer - 1 page or 2 pages, horizontal or vertical fast page turns - Scroll or turn pages by tap on sides - 8 handwriting tools that you can adjust color and line width - Horizontal or vertical thumbnail scrollbar - PDF outlines, bookmarks, and annotations list - PDF search - Cache manager supports 3 modes, permanent cache, automatic cache, and no cache - PDF creation and assembly (move/rotate/insert/remove pages) Quick Look, ZIP Preview - PDF, RTF, TEXT - iWork documents, Office documents - Images, Music, PiP Videos - Without Unzip, preview ZIP contents (password may be requested if locked) Advertisements before upgrade - Banner ads can be shown at the bottom - Interstitial ads can be shown per 30 minutes Information about the auto-renewable nature of the subscription - Payment will be charged to iTunes Account at confirmation of purchase. - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. A link to privacy policy and terms of use - http://blog.musebook.com/2017/03/privacy-policy.html The length of the subscription - Monthly NOTE: All content contained herein is subject to change without notice.

Most PDF apps greet you with a subscription screen, and editing a file usually means uploading it to someone else's server. Contracts, medical records, IDs — do they really need to travel? PDFin was built the other way around. There is no networking code in the app. Your documents never leave your device, and there are no subscriptions and no ads. ■ LIFETIME FREE FOR EARLY BIRDS Run the app for the first time on or before October 28, 2026, and that device gets every feature free for life. Eligibility is stored only on the device, so it cannot be restored after a reinstall or a device change (the free features remain available). ■ FREE FEATURES - Fast viewer: opens a 47 MB document in 0.37 seconds, scrolls at 44.5 fps, and stays stable with a 452 MB file (our own measurements) - Search with highlighting, page thumbnails - Opens the body text of HWP, HWPX (Korean word-processor formats), DOCX, XLSX and TXT files - Hand-drawn signatures and stamping - Signature and seal library: import from photos, remove backgrounds, name each item — no limit on how many - Three pen styles for handwriting - OCR preview: recognize and copy the current page - Dark mode ■ PRO FEATURES (one-time purchase) - OCR the whole document and save it as a searchable PDF — processed on your device with Apple Vision / Google ML Kit, no internet needed - Edit text: redraws your new text over the original (that is exactly how it works) - Add text, insert photos, shapes, mosaic, color picker - Create PDFs from text and images - Page tools: merge, extract, rotate, delete, watermark, stamp, page numbers, password protect and remove - Save HWP and other documents as PDF (body-text extraction) - Extract text to .txt, flatten annotations, edit document info - Vertical seal maker (Gothic sans-serif typeface) - Batch save to PDF on macOS ■ WHY YOUR FILES STAY PUT This is not a promise — it is how the app is built. The app ships with no network entitlement at all. No accounts, no sign-in, no data collection. Purchases are handled by the App Store. ■ HONEST LIMITATIONS - On mobile, documents over 120 MB cannot use text editing, search, OCR or save features (viewing and pen still work). Desktop handles up to 1 GB. - Mosaic covers content visually only; the original text may remain inside the file. It is not permanent removal. - Text selection and copying are not supported (use text extraction instead). No pinch zoom — use the buttons or Ctrl + wheel. - HWP files show body text only: tables, images and formulas are excluded, and password-protected HWP files cannot be opened. Legacy doc/xls/ppt formats are not supported. ■ PRICING Installing and using the core features is free. Pro is a single $9.99 purchase — not a subscription, so there is nothing to pay next year or the year after. No ads; the free version shows one banner for our own apps, and Pro removes even that. PDFin — THREE SEVEN TWELVE INC.