OCRMode | string | Auto | Specifies how OCR (Optical Character Recognition) should process input content, offering various modes to tailor text extraction based on content type such as images, fonts, and vector graphics. For more information, see OCR Extraction Modes. |
OCRResolution | integer | 300 | Use this parameter to change the OCR resolution from the default 300 dpi. The range is from 72 to 1200 dpi. |
RotationAngle | integer | - | Use manual rotation to handle PDFs with vertically drawn text. Normally, OCR automatically detects page rotation in PDFs and extracts text accurately. However, in some cases, the PDF might not have an actual rotated page --- Rather, the text itself is drawn vertically. In such scenarios, auto-detection may fail. You can use this parameter to manually set the page rotation. The available angles are: 0, 1, 2, 3. |
LineGroupingMode | string | None | Controls line grouping in PDF text extraction. Modes: None (no grouping), GroupByRows (merge rows if all cells align), GroupByColumns (merge cells by column), JoinOrphanedRows (merge single-cell rows to above if no separator). |
ConsiderFontColors | boolean | false | Controls whether font colors should be considered when detecting table structure and merging text objects during PDF extraction. Set to true to consider font colors. |
DetectNewColumnBySpacesRatio | string | 1.2 | Controls how spaces between words are interpreted for column detection in PDF text extraction. It defines the ratio of space width that determines when text should be treated as being in separate columns. |
AutoAlignColumnsToHeader | boolean | true | Controls how columns are detected and aligned during table extraction from PDF documents. It affects both table structure detection and text extraction with formatting preservation. Set to true to automatically align columns to the header row. When set to true (default), the row with the most columns is used as the header, and all other rows are aligned to this structure --- ideal for well-structured tables. When set to false, columns are analyzed independently across all rows to build the structure, which works better for inconsistent or irregular tables. |
OCRImagePreprocessingFilters | object | - | Image preprocessing filters for OCR. Use methods like AddGammaCorrection() and AddGrayscale() by including them as JSON keys. See sample usage. |
.AddGammaCorrection() | array[string (float format)] | ["1.4"] | Adds a gamma correction filter to the image preprocessing pipeline used during OCR (Optical Character Recognition). This filter adjusts the brightness and contrast of an image by applying a non-linear gamma correction to improve text recognition quality. |
.AddGrayscale() | boolean | false | Set to true to preprocessing filter that converts a colored document/image to grayscale before performing OCR. |
DataEncryptionAlgorithm | string | - | Controls the encryption algorithm used for data encryption. See User-Controlled Encryption for more information. The available algorithms are: AES128, AES192, AES256. |
DataEncryptionKey | string | - | Controls the encryption key used for data encryption. See User-Controlled Encryption for more information. |
DataEncryptionIV | string | - | Controls the encryption IV used for data encryption. See User-Controlled Encryption for more information. |
DataDecryptionAlgorithm | string | - | Controls the decryption algorithm used for data decryption. See User-Controlled Encryption for more information. The available algorithms are: AES128, AES192, AES256. |
DataDecryptionKey | string | - | Controls the decryption key used for data decryption. See User-Controlled Encryption for more information. |
DataDecryptionIV | string | - | Controls the decryption IV used for data decryption. See User-Controlled Encryption for more information. |