Portable USB · Cloud Ready vs Pico PDF Viewer

"Portable USB" — Turn your iPhone into a portable storage hub to easily manage local and cloud files! No complicated operations needed—efficiently organize, view all types of files, and quickly share them with others. The interface is simple and easy to use, while packing powerful and practical features: ◆ Seamless Multi-Platform Cloud Integration Supports GoogleDrive, DropBox, OneDrive, and iCloud for one-step file synchronization; ◆ Flexible Transfer & Easy Sharing ・Wi-Fi Transfer: Wirelessly move files between your phone and computer with ease. ・USB Cable Sharing: For the fastest speed, use iTunes on Windows or Finder on macOS. ・Share files bidirectionally with other apps, or via email attachments. ◆ Multi-Layer Encryption for Your Privacy Keep your data safe with a secure 4-digit passcode, complex password, pattern lock, or Touch ID; ◆ All-in-One File Management Global search, folder categorization, rename/move/compress/decompress (ZIP), and multi-dimensional sorting; ◆ Full Format Support for Smooth Viewing ・PDFs (thumbnails, bookmarks, printing) ・Images (swipe to browse, zoom) ・Documents (Word, Excel, PPT, iWork, html) ・Audio & Video (mp4, mp3 and other mainstream formats) We also provide handy usage tips and professional technical support to make file management simpler for you! Have questions? Contact us: awfsksk@gmail.com

Pico PDF Viewer is a very lightweight, local document viewer built around fast switching: authorize one folder, and jump between the PDFs and Markdown files inside it without picking a new file every time. ■ PDF reading ・Continuous scroll or single-page mode, pinch to zoom and pan for detail ・Full-text search (on supported devices) — jump straight to a hit, highlighted ・Bottom thumbnail strip to jump around long documents quickly ・Immersive controls — tap anywhere to show or hide them ■ Markdown viewing and editing ・Fully styled preview: headings, lists, quotes, code blocks, tables ・Edit in place and save — "Save" overwrites the original file directly, no switching to another app ・Formatting toolbar (headings, bold, italic, lists, code, tables, links) and a line-number gutter ■ Quick switching A side drawer lists every PDF/MD in the current folder — tap one to switch, no need to go back to the list first. ■ Three themes, three languages Dark, light, and warm themes switch instantly, or follow your system's dark mode setting; the interface is available in 繁體中文, English, and 日本語 at any time. ■ Fully offline Every file is read, rendered, and edited entirely on your device. There is no server and no account, and nothing is ever uploaded. The only network activity is the bottom Google AdMob banner (no interstitial ads) — see the privacy policy for details. You can also open a single file directly from another app's "Open with" or share menu (email, a download notification, …) without authorizing a whole folder.