How Can I Improve Text Formatting Extraction in iTextSharp?

Boosting Text Formatting Extraction with iTextSharp

iTextSharp's default PDF text extraction lacks precision when it comes to advanced formatting like font styles and colors. This article presents a solution to overcome this limitation.

A Superior Extraction Approach:

Instead of relying on the standard extraction method, utilize a custom strategy such as "TextWithFontExtractionStategy." This approach tracks changes in baseline, font name, and size to accurately identify formatting shifts.

Styled HTML Output:

This improved strategy produces HTML output, embedding style tags for each text segment. This preserves formatting details within the extracted data.

Implementation Details:

The provided code sample showcases how to implement this enhanced strategy and generate formatted HTML output. It leverages the ITextExtractionStrategy interface for text extraction and rendering.

Advanced Rendering Capabilities:

The strategy includes detection of "faux bold" fonts (fonts visually bolded using fill and stroke rendering). It adds "-Bold" to the font name in the HTML output to reflect this.

Customization Options:

The strategy is highly adaptable. You can modify the HTML formatting to suit your specific styling needs and preferences.

Summary:

By integrating this enhanced extraction strategy into your iTextSharp application, you'll significantly improve the accuracy and versatility of your text formatting extraction, capturing richer information from PDF documents.

The above is the detailed content of How Can I Improve Text Formatting Extraction in iTextSharp?. For more information, please follow other related articles on the PHP Chinese website!