PDF Toolkit
Invert Colors
Transform bright documents for comfortable night reading. Norkta offers two distinct algorithms:
- B&W (Smart Invert): Intelligently inverts black text to white (and vice versa) while preserving original images and colored elements.
- Full (Classic Invert): A complete color inversion of the entire document, reversing every pixel for maximum contrast in dark environments.
Compression
Reduce file sizes significantly while maintaining legibility. Choose the balance that fits your needs:
- Quality: Slight reduction in size, highest visual fidelity.
- Balanced: The sweet spot between small file size and good readability.
- Minimum: Maximum compression for sharing over limited connections.
Extract & Merge
- Extract Text: Instantly grab text content from your PDFs. The output is displayed in a clean pane for easy copying.
- Merge: Combine multiple documents into a single file. Drag files into the drop zone; they will be merged in the order they are added.
Visuals & Settings
- Appearance: Toggle between Light, Dark, or System Sync modes in Settings.
- Liquid Glass Effect: Enable the "Background Effect" to experience the chromatic, transparent window design that floats on your interface.
Privacy & Performance
100% Local Processing
Your data stays on your device. Norkta operates without servers or uploads, ensuring your documents remain private, fast, and secure.
Processing Limits
To prevent memory overflow on mobile devices, file handling size is currently limited to 50MB. We are actively investigating techniques to increase this limit in future updates.