PDFOptim vs Smallpdf

PDFOptim compresses and optimizes PDF files to reduce their size while retaining visual quality. Four automatic methods analyze a document and apply a compression approach, while a synchronized side-by-side preview lets users compare the original and compressed files before saving. Manual controls include JPEG quality, image downsampling, color profiles, and hidden metadata removal. The Mac app can process folders in batches using multiple CPU cores and drag-and-drop queues. Scanned documents can be converted to grayscale, monochrome, or bitonal profiles; RootRise says this can produce files up to 40 times smaller. A five-level vector optimization feature removes excess anchor paths and structural data from vector-heavy PDFs. Apple Shortcuts can trigger compression, and the maker describes using the app as a Finder Quick Action. RootRise says processing runs locally, files are not uploaded, and core features work offline; internet is used for purchase validation. The free version allows one compressed PDF export per week and restricts Shortcuts Actions. Premium plans are $0.99 a month, $6.99 a year, or $9.99, paid once.

Smallpdf is a PDF service with tools for editing, converting, compressing, organizing, sharing, protecting and scanning documents. Users can add text, shapes, images and freehand annotations, create forms and use OCR. It supports electronic signatures, including signing, requesting signatures and tracking documents. Files can be stored, managed and shared across devices, and the mobile app supports PDF scans, document organization and file sharing. Smallpdf is available on the web, Windows, iOS and Android, and also supports a Chrome extension. Integrations include Google Workspace and Dropbox. Thirty PDF tools are available for free, and the free trial lasts seven days. Pro costs $12 a month, billed monthly per user. Team costs $10 a month per user and covers 2 to 100 users, with a minimum of two seats. Smallpdf says it uses 256-bit TLS encryption for information transfer and is ISO/IEC 27001 certified and compliant with GDPR, CCPA and nFADP. Customer support is available around the clock.