Document Classifier

Integrate this step into your Zapier workflow to analyze the text of a document using AI and classify it into categories like invoice, order, or industry. This feature is useful for quickly identifying the origin of a document and can be customized with specific rules.

Input

Name	Description	Required
Input Document URL	Provide the URL of the input PDF document or a filetoken:// link from PDF.co Built-In Files Storage. For other cloud services like Google Drive or Dropbox, ensure the link is publicly accessible.	Yes
Custom Classification Rules	Define classification rules in CSV format, if required. Format per row: classname,logic,keyword1,keyword2. Example: Amazon,AND,Amazon AWS,AWS Invoice. Refer to PDF Classifier for detailed instructions.	No
CSV Rules URL	Provide a URL to a CSV file containing custom classification rules. The format for each row should be: classname,logic,keyword1,keyword2. Example: Amazon,AND,Amazon AWS,AWS Invoice.	No
Enable Case Sensitive Custom Rules	Indicate if the keywords in the custom rules should be case sensitive.	No
Custom Profiles	A JSON string which adds options for the conversion process. See Custom Profiles for more.	No

Source PDF URL & Google

When using Google Drive, it’s typically recommended to choose the File option. For more advanced file integration techniques, see Integrating File Sources with pdf.co.

Output

Name	Description
url	The temporary URL on the PDF.co file server.
classes	An array containing possible category of input document.
outputLinkValidTill	A timestamp which indicates how long the url will be available for.
error	Details of any errors (if any).
status	The response status code. If all good this will be 200.
jobId	The unique identifier for the job.
credits	The credits spent on the process.
remainingCredits	The credits left on your account.
duration	The time it took for the process.

Custom profiles

Use Custom Profiles to enhance your workflow with additional processing options. Enter JSON configuration to customize OCR settings, output format, text extraction methods, and more.

Sample JSON

{ "ImageOptimizationFormat": "JPEG", "JPEGQuality": 25, "ResampleImages": true, "ResamplingResolution": 120, "GrayscaleImages": true }

You can use any regular API parameter from the API Reference within Zapier using the std_params feature in profiles. The std_params enables the definition of regular API parameters in a JSON format, See Standard Parameters for detailed documentation and examples.

Parameter	Type	Default	Description
RenderTextObjects	boolean	true	Render text objects or not
RenderVectorObjects	boolean	true	Render vector objects or not
RenderImageObjects	boolean	true	Render image objects or not
TIFFCompression	string	LZW	TIFF compression algorithm. The options are: None, LZW, CCITT3, CCITT4, RLE
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. Refer to OCRImagePreprocessingFilters for usage examples.
.AddGrayscale	boolean	false	Converts to grayscale before OCR.
.AddGammaCorrection	array[string (float format)]	[“1.4”]	Adds a gamma correction filter.
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.

OCRImagePreprocessingFilters

To set image preprocessing filters, please use:

{
 "profiles": "{
    "ExtractShadowLikeText": false,
    "OCRMode": "Auto",
    "OCRImagePreprocessingFilters.AddGrayscale()": [],
    "OCRImagePreprocessingFilters.AddGammaCorrection()": [
        1.4
    ]
}"
}