PDF Editor - PDF4.com

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PDF4 Editor – All-in-One PDF Editor, Scanner & Form Filler Edit, Sign, Scan & Annotate PDFs — Anytime, Anywhere. PDF4 Editor is your ultimate PDF toolkit designed for productivity on the go. Whether you're working, studying, or managing documents, PDF4 Editor makes it easy to view, edit, sign, and share your PDFs right from your iPhone or iPad. Key Features: PDF Editor Edit text, images, and pages in your PDF with ease. Rearrange, rotate, or delete pages in seconds. PDF Scanner Turn your paper documents into high-quality PDFs using your device camera. Auto-detects edges and enhances clarity. E-Signature Sign documents digitally with your finger or stylus. Request signatures or fill out contracts with ease. Form Fill Easily fill out PDF forms, including interactive fields and checkboxes. Say goodbye to printing! Annotate & Highlight Add comments, highlight text, underline, or strikethrough. Perfect for study notes or document reviews. Draw & Markup Draw freely on PDFs for creative markups, diagrams, or handwritten notes. Stamp Tool Add custom or pre-designed stamps like “Approved”, “Confidential”, and more. Why PDF4 Editor? Fast, lightweight & user-friendly Works offline – no internet required Keeps your files private and secure Compatible with iCloud, Dropbox, Google Drive & more "By using this app, you agree to Apple’s Standard End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

答案里的每个数字都来自本页上方展示的数据，可以逐条核对。