New
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14-tool desktop release — Kala PDF now ships as a Windows PDF toolkit with Merge, Split, Reorder Pages, Remove Pages, Rotate, Optimize, Convert, Images to PDF, Searchable PDF OCR, Extract Images, Page Number, Watermark, Security, and Metadata.
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Free and Pro rollout completed — All tools now follow the same product model: Free includes evaluation limits and output branding where applicable, while Pro removes branding, unlocks higher limits, and enables commercial use.
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Searchable PDF OCR added to the launch lineup — OCR is now available as a first-class workflow for turning scanned files and images into searchable PDFs while keeping document processing local.
Improved
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Core workflows rebuilt for the new app — Convert, Metadata, Watermark, Security, Page Number, Extract Images, Optimize, and Activation were rebuilt for a more consistent workflow across the app.
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Activation and offline use clarified — Pro activation now follows a one-time online activation flow, while day-to-day document processing remains local on your machine.
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Installer and upgrade path validated — Install, uninstall, upgrade, shortcut, icon, first launch, and legacy license retention were verified for the public Windows release.
Fixed
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Heavy-task stability hardened — Conversion, extraction, and OCR-related paths were hardened so a failed job is less likely to interrupt the whole app.
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Optimization setup flow cleaned up — The Optimize tool now handles missing requirements more clearly, including detection, setup guidance, and automatic availability once the requirement is installed.
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Website and legal copy synced to product behavior — Pricing, FAQ, privacy, terms, and compliance wording were updated to match the current activation, support, and licensing model.
New
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Freemium rewrite — Kala PDF was rewritten so the app can ship as a single offline installer with Free and Pro behavior handled consistently across the UI and backend.
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Freemium rollout across core tools — Merge, Split, Compress, Rotate, Remove Pages, Reorder Pages, Watermark, Security, Page Numbers, Metadata, Images to PDF, and Extract Images now follow the Free footer and Pro unlock model.
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Installer takeover from legacy KalaPDF — The new installer now replaces the older KalaPDF packaging so users upgrade into the same app identity instead of ending up with a separate installation.
Improved
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Feature cards and pricing realigned — The website now matches the app's actual toolset and positions Free as the evaluation tier with a branding footer, while Pro covers commercial workflows and clean output.
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All Free limit notices moved earlier — Batch limits, file-size warnings, and extreme compression limits are now shown before processing so users understand the restriction before pressing the action button.
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Legacy copy cleaned up — Old product wording was removed, including outdated Pro-only messaging for modules that are now available in Free with footer branding.
Fixed
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App crash protection for heavy operations — Heavy conversion and extraction tasks were isolated so an internal failure only affects the current job, not the main app window.
New
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Drag & drop images from File Explorer — In the "Images to PDF" tool, you can now drag image files directly from Windows Explorer into the application. No more clicking "Add Images" each time.
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Order badges for Reorder Pages & Images to PDF — Each item now shows a numbered badge indicating its current position in the sequence, making it easier to track changes at a glance.
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Pro feature dialog with direct activation — When you try a Pro-only feature without a license, the new dialog now includes a one-click "Activate License →" button instead of a plain info message.
Improved
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Drag & drop visual feedback — Reorder Pages and Images to PDF now highlight the target item in blue when you hover over it during a drag. Clearer, smoother, and more intuitive.
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All toast alerts replaced with dialogs — Notifications no longer disappear in a blink. Every message — errors, warnings, and success confirmations — now shows as a clear, dismissable dialog.
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Drag & drop engine upgraded — Reorder Pages and Images to PDF now use a modern drag-and-drop system, eliminating older patterns and improving reliability on all Windows versions.
Fixed
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App crash protection for heavy operations — Extract Images, PDF to Images, and Convert to Word now run in an isolated environment. If an internal error occurs during processing, only that task is affected — your main app stays open and responsive.
Launch
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Kala PDF is live — The original offline PDF suite launched with the core document tools and lifetime licensing model that later evolved into the freemium rewrite.
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One-time purchase model — The original release launched as a one-time purchase desktop utility instead of a recurring subscription.
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Local PDF processing — The original product direction focused on keeping document work on the user's own machine instead of sending files to a cloud PDF tool.
Download the current Windows release.
Start with Free to test every tool on your own files, then upgrade to Pro when you need clean output, higher limits, and professional or commercial usage rights.