Calm PDF is a powerful, beautifully designed PDF and image toolkit that lets you convert, view, merge, compress, and extract text — all without leaving your device. No cloud uploads, no server processing, no account needed. Your files stay on your phone, always.
Whether you need to quickly convert a photo to PDF, merge multiple documents before a meeting, compress large files for email, or extract text from a scanned receipt, Calm PDF handles it all with a clean, intuitive interface that gets out of your way.
WHAT YOU CAN DO FOR FREE:
• Convert images to PDF — turn any photo into a professional document instantly
• Format conversion — PNG to JPG, JPG to PNG with quality control
• PDF to image — export PDF pages as JPG or PNG for sharing
• Merge PDFs — combine multiple documents into a single file effortlessly
• Image compression — reduce photo file sizes without visible quality loss
• PDF Reader — enjoy 8 unique reading modes: Sepia, Night, Eye Care, Focus, High Contrast, and more
• Annotations — highlight text, underline, add sticky notes, stamps, and bookmarks
• File management — organize documents into color-coded folders with smart filtering and sorting
• Page navigation — jump to any page instantly, search text within any PDF
• 6 stunning themes — Light, Dark, Warm, Kids, Senior, and Monochrome
• 20+ languages — including full Arabic, Urdu, Hebrew, and Persian RTL support
UNLOCK PRO FOR MORE POWER:
• Unlimited bulk conversions — free users get 2 per day, Pro gets unlimited
• PDF Compression — dramatically reduce PDF file sizes for easy sharing
• Watermarks — add text or image watermarks to protect your documents
• PDF Split — divide documents by page number or custom page ranges
• WebP conversion — convert PDFs and images to modern WebP format
• Create from scratch — build new PDF documents from a blank page
• HEIC/HEIF support — convert Apple's native photo format to JPG or PDF
• OCR Text Extraction — pull copyable, searchable text from scanned images and photos
• Searchable PDF — transform any scanned PDF into a fully searchable document with OCR
• Batch processing — convert or compress dozens of images at once
• App Lock — protect your documents with PIN code, Face ID, or Touch ID
PRIVACY & SECURITY:
• 100% on-device processing — nothing is uploaded to any server, ever
• No account required — download and start using immediately
• No tracking, no analytics, no ads (Pro removes all ads)
• iCloud and Google Backup support for your settings and preferences
• Your documents are never accessed by anyone but you
DESIGNED FOR EVERYONE:
• Kids theme — bright, colorful interface designed for young students
• Senior theme — extra-large text and high contrast for comfortable reading
• 8 PDF reading modes — find the perfect setting for any lighting condition
• Minimum 44px touch targets — easy to tap, even for users with motor difficulties
• Full RTL support — seamless experience for Arabic, Hebrew, Urdu, and Persian speakers
SUPPORTED FORMATS:
PDF, JPG, JPEG, PNG, WebP, BMP, GIF, HEIC, HEIF
Calm PDF is built for people who want a fast, reliable, and private PDF toolkit without the bloat of enterprise apps or the privacy concerns of cloud-based services. No subscriptions required — a lifetime purchase option is available for those who prefer to pay once.
Download Calm PDF and take full control of your documents — calmly, privately, and beautifully.
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