Fixed stability issues when OCR-ing large volumes of PDFs in parallel, and added controls to limit OCR memory usage.
Fixed loading of large TIFF files and improved error messages for unsupported TIFF images.
IronOCR for .NET 2026.7.22026年6月26日
機能
Updated Android native libraries to support 16 KB memory page sizes, ensuring compatibility with Android 15 and newer devices.
Updated internal dependencies.
修正
Fixed a PDF/A compliance issue affecting searchable PDFs containing complex-script fonts such as Arabic.
IronOCR for .NET 2026.6.12026年5月26日
機能
Improved searchable PDF OCR alignment for numeric content with refined digit width compensation and font sizing accuracy.
Updated internal dependencies.
IronOCR for .NET 2026.5.22026年4月29日
機能
Added word-level coordinates to OcrDocAdvancedResult for improved reading order reconstruction.
Updated internal dependencies.
修正
Fixed ReadHandwriting() crash on skewed or difficult inputs; now returns an empty result when no text can be extracted.
Corrected bounding box coordinates in ReadPhoto() and ReadScreenShot() when AdvancedScan resizes images, preventing out-of-bounds regions and crop/PDF errors.
Fixed an issue where TIFF images with orientation tags were incorrectly flipped or rotated during loading, saving, or bitmap conversion.
IronOCR for .NET 2026.4.12026年3月27日
機能
Added full International Civil Aviation Organization (ICAO) MRZ field extraction and best-effort VIZ Date of Issue detection to 'PassportInfo'.
Updated internal dependencies.
修正
Fixed crash in 'SaveAsSearchablePdf' when using Scale() or EnhanceResolution() during batch text rendering.