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Data Extraction Guides ​

Unleash the Power of Data with ComPDFKit Conversion SDK's Data Extraction to detect, recognize, analyze, and extract the PDF text, image, table, etc.

Extract PDF to JSON ​

Overview ​

Extract text, tables and images from PDF documents to Json file.

Standard table and non-standard table ​

Commonly, tables can be divided into two categories: standard tables and non-standard tables. The specific definitions are as follows:

  • Standard table: The table border and the inner lines of the table are complete and clear. There is no need to manually add table lines to divide the table content.

image-20231116145224545

  • Non-Standard Tables: Tables lacking borders or clear inner lines, requiring manual additions of table lines to separate contents.

image-20231116145517818

Table Extraction Option ​

ComPDFKit Conversion SDK supports the function setContainTable(), when enabled, will extract table content from PDFs and output the table structure; otherwise, table content will be treated as regular text.

Notice ​

  • Without enabling AI layout analysis or OCR options, tables in the original PDF cannot be extracted. It is recommended to enable AI layout analysis or OCR for high-precision table recognition.

Sample ​

Full sample code which illustrates the text extraction capabilities.

java
JsonOptions opt = new JsonOptions();
CPDFConversion.startPDFToJson("json.pdf", "password", "path/output.json", opt);