PDF Studio ‎ vs Raven

Welcome to PDF Studio, the ultimate PDF management app designed to provide a comprehensive and powerful document editing experience. The app is equipped with features that cater to both casual users and professionals, ensuring seamless PDF handling for all your needs. Key Features: Scan: Create PDF documents directly from your device camera by scanning physical documents. Images to PDF: Convert multiple images into a single PDF document with ease. Merge: Combine multiple PDF files into one unified document. Split: Divide a single PDF file into separate documents as needed. Watermark: Add custom watermarks to protect and brand your PDF documents. Annotate: Add notes, comments, and annotations to your PDF files. Create: Build new PDF documents from scratch with full customization options. Edit: Add text and images to existing PDF documents. Sign: Add digital signatures to PDF files for authentication and approval. Page Numbers: Insert page numbers throughout your PDF documents. Lock: Secure your PDF files with password protection. Unlock: Remove password protection from locked PDF files. Page Size: Change the page size of your PDF documents to standard formats. Crop: Crop PDF pages to remove unwanted margins or focus on specific content. Compress: Reduce PDF file size without significant quality loss. Rotate Pages: Rotate PDF pages to correct orientation. Extract Pages: Extract specific pages from PDF documents. Duplicate Pages: Create copies of pages within your PDF. Remove Pages: Delete unwanted pages from PDF documents. Rearrange Pages: Reorder pages in your PDF files. Blank Pages: Insert blank pages into your PDF documents. Flip Pages: Flip PDF pages horizontally or vertically. Page Filter: Apply filters like black and white or grayscale to PDF pages. PDF to MP3: Convert PDF text content to audio files. PDF to Images: Convert PDF pages to image files. PDF to TXT: Extract text content from PDF files. Elevate your PDF management experience with PDF Studio, where every feature is crafted to support your document needs. Whether you're merging reports, signing contracts, or organizing documents, the app is your perfect PDF companion. Developed by Anvaysoft Programmer - Hrishi Suthar Made with love in India

Hidden messages in plain sight. Raven is a cryptographic tool that seals your secrets on a public blockchain, not inside your text. Write something private, seal it for one specific person, and Raven hands you back a normal-looking sentence — a caption, a comment, a text — that quietly signals a message is waiting. Post it anywhere. To everyone else, it's just a post. To the person with the right key, it's a signal. WHY RAVEN IS DIFFERENT Most private tools protect what you say. But anyone watching can still see THAT you're talking — and who you talk to, when, and how often becomes a kind of message in itself. Raven doesn't show up on that map. There's no traffic between you and your recipient at all — just a public post that happens to mean something to one person. NO ACCOUNTS, NOTHING TO LEAK - No signup, no email, no phone number, no name. - Your keys are generated on your device and live in the iOS Keychain, behind Face ID or your passcode. - Your secrets are sealed on your device with end-to-end encryption before anything touches a network. - No analytics, no tracking, no ads. We couldn't read your ravens if we wanted to — there's no place in the system where that information exists. HOW IT WORKS 1. Add the key of the person you want to reach — scan their QR code or paste their key. 2. Write your secret. Raven seals it on-chain and gives you an ordinary carrier sentence. 3. Post or send the carrier anywhere you already talk. 4. They scan it in Raven and the secret unseals on their device — where only they can see it. A NOTE ON HONESTY, BECAUSE IT'S EARLY Raven is young and improving fast. Ravens are ephemeral by design — the retrievable copy is cleared after a limited window, so Raven is not an archive and makes no durability promises. Keep your own copy of anything you need to keep. And there is no password recovery: your keys exist only on your device, so export a backup. If you lose both, no one — including us — can recover them. ZERO TOLERANCE Raven is for lawful communication between consenting people. Our Terms state zero tolerance for objectionable content or abusive behavior. You can block any key, dismiss any raven, and report abuse from inside the app — reports go to a monitored inbox and we act within 24 hours. Questions, gaps, or something that doesn't work: support@oara.ai Every raven carries a secret. Send yours.