Proviewer vs PDF Compressor

• Proviewer 是一款轻量、专注的本地文件预览工具，适合快速打开、查看和管理常用文件。 你可以将文件导入 Proviewer，在 App 内集中查看最近打开的内容。无论是文档、代码、网页文件、结构化数据、图片还是音视 频，都可以更方便地在手机或 iPad 上浏览。 主要功能： • 多格式文件预览 支持 PDF、Markdown、HTML、JSON、TXT、代码文件、图片、音频、视频等常见格式。 • Markdown 与 HTML 预览 针对 Markdown 和 HTML 提供更清晰的阅读体验，适合查看文档、笔记、网页片段和技术资料。 • 导出 PDF Markdown 与 HTML 文件可以导出为 PDF，便于保存、分享或归档。 • JSON 查看 支持 JSON 内容查看，适合快速浏览接口数据、配置文件和结构化文本。 • 图片、音视频预览 支持常见图片格式以及音频、视频文件，方便查看导入的媒体内容。 • 最近文件管理 自动记录最近打开的文件，便于快速回到之前查看过的内容。 • 本地优先 文件会保存在本地，适合处理个人资料、工作文档和离线内容。 Proviewer 适合开发者、学生、办公用户和需要经常查看多种文件格式的人使用。它不追求复杂的编辑功能，而是专注于把“打开文 件、看清内容、快速导出”这几件事做好。

Compress PDF files quickly, reduce file size, and keep your documents private with PDF Compressor: Reduce PDF. Need to make a PDF smaller for email, work, school, online forms, or document uploads? PDF Compressor helps you reduce PDF file size directly on your iPhone or iPad — with no account required and no document uploads to our servers. SMART PDF COMPRESSION Reduce PDF size while preserving text, links, and document structure whenever possible. Smart Compression is ideal for documents where readability and selectable text matter. MULTIPLE COMPRESSION OPTIONS Choose the compression method that fits your needs: • Smart Compression — Reduce file size while preserving text and links • Maximum Compression — Get a smaller file using stronger compression • Target Size — Try to compress your PDF toward 500 KB, 1 MB, 2 MB, 5 MB, or a custom size • Multiple quality options for stronger compression BUILT FOR REAL-WORLD FILE SIZE LIMITS Trying to upload a PDF but the file is too large? Choose a target size and let PDF Compressor reduce the document as much as possible while protecting its structure. Some PDFs are already highly optimized, so the exact target size cannot always be reached. The app clearly tells you when further compression would reduce document quality or make the file larger. PRIVATE — YOUR PDFs STAY ON YOUR DEVICE Your PDF documents are processed locally on your device. • No PDF uploads to our servers • No account required • No sign-in required • Your original PDF is never overwritten • Save or share the compressed copy only when you choose PREVIEW BEFORE AND AFTER Preview your PDF before compression and check the compressed version when processing is complete. CLEAR COMPRESSION RESULTS See exactly what happened to your document: • Original file size • Compressed file size • Percentage of space saved • Compression method used • Whether text and links were preserved SAVE AND SHARE EASILY Save your compressed PDF to Files or share it directly using the standard iOS sharing options. PDF Compressor: Reduce PDF is designed to make reducing PDF file sizes simple, fast, and private. Choose a PDF, select your compression method, reduce its size, and save the result.