PDFToolbox vs 研词派

PDF Toolbox is a powerful PDF processing tool that works entirely on your device, with no internet connection required, ensuring your file privacy and security. We provide comprehensive PDF handling solutions that allow you to easily convert, protect, and customize your PDF documents. Key Features PDF to Image Conversion Transform PDF documents into high-quality images with multiple customization options: • Image format selection: JPG, PNG, or GIF • Result type: Multiple separate images or one large image • Color modes: Color, grayscale, or black & white • Quality levels: Low, medium, high to meet different needs • Batch export: Export all pages with one tap Image to PDF Conversion Easily merge multiple images into PDF documents: • Multi-image processing: Select multiple images simultaneously • Flexible conversion: Merge into a single PDF or generate multiple separate PDFs • Color processing: Color mode, grayscale mode, black & white mode • Source selection: Choose images from your photo library or file system Add Watermark Add professional text watermarks to your PDFs: • Custom watermark text • Adjustable font size • Transparency settings (0-100%) • Rotation angle (0-360°) • Horizontal/vertical spacing control • Automatically applied to all PDF pages Add Password Protect important documents with password encryption: • Secure encryption: Using standard PDF encryption technology • Simple operation: Add password protection with one tap • Secure storage: Encrypted files saved locally only Remove Password Easily remove encryption from PDFs with known passwords: • Enter the correct password to unlock PDF documents • Remove password protection with one tap • Preserve all formatting and content of the original document Our Advantages • Completely local processing: All file processing is performed locally on your device, never uploaded to any servers • Privacy protection: Your document contents remain only on your device • Efficient processing: Optimized processing engine provides fast conversion experience • Rich options: Meet various customization needs for professional users • High-quality output: Maintain the clarity and formatting of original documents Use Cases • Students: Convert study materials, course slides, and e-books • Professionals: Process work documents, add company watermarks or password protection • Designers: Convert PDF designs to images for editing or sharing • Teachers: Add watermarks to teaching materials to prevent unauthorized distribution • Anyone who needs simple, efficient PDF file processing Download PDF Toolbox now and experience professional-grade PDF processing features! END USER LICENSE AGREEMENT (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ PRIVACY POLICY: https://jiw.github.io/PDFToolbox/privacy_policy_en.html

研词派 专注于考研英语备考，通过真题+词汇+记录统计，帮你把每一分钟学习都用在刀刃上。 真题词库更聚焦: 系统统计英语（一）与英语（二）近 20 年真题词汇，剔除过于简单的单词，只保留真正影响得分的高频与难点词，帮助你有的放矢地背词。 真题试卷更完整 集中收录 2006–2025 年英语（一）与英语（二）真题及答案，统一排版，阅读体验接近纸质试卷，并支持便捷打印，适合精做与模拟训练。 背词方式更灵活: 内置考研高频词汇数据库，支持查词、例句与发音，还提供单词轮播功能，让你在通勤、走路时也能边听边记单词，随时收藏重点词汇。 学习过程更可视: 支持对难题与长难句快速添加笔记，逐步沉淀为个人错题本与复习清单。系统自动统计做题次数、正确率和学习时长，并结合智能学习提醒，帮助你建立稳定、高效的学习节奏。 学习体验更纯粹: 界面简洁干净，排版接近纸质试卷，减少视觉干扰，让你把注意力真正放在题目和单词本身。 购买与内购说明: 本应用为一次性付费下载，下载后即可使用全部真题、词库、笔记与学习统计等核心功能。 应用内另提供一项可选内购功能：「单词连续播放」一次性解锁，用于在背词时自动循环播放单词及释义，方便通勤、走路等场景使用。是否购买该功能完全由你自行选择，不影响正常做题与查词等基础体验。 无论你是刚开始备考，还是处于冲刺提分阶段，研词派 都能成为你长期稳定的考研英语练习伙伴。