[FEATURE] PDF Utilities

[kashifkhan0771]

Feature Description

Introduce a set of PDF utilities to extend the functionality of the library. These utilities will include:

1. HTML to PDF Conversion: Convert HTML content (string or file) into a PDF document.
2. Extract Text from PDF: Extract plain text content from a PDF file for processing or analysis.
3. Merge PDFs: Combine multiple PDF files into a single document.
4. Split PDF: Split a PDF into multiple smaller PDFs based on page ranges.

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Use Case

These utilities provide essential PDF manipulation tools for various applications:

1. HTML to PDF: Generate portable reports, invoices, or documents from structured HTML content.
2. Extract Text: Enable indexing, searching, or repurposing text content from PDFs.
3. Merge PDFs: Combine multiple documents into a single cohesive PDF, useful for reports or archives.
4. Split PDF: Extract specific sections of a PDF or divide large PDFs into smaller parts.

These functionalities will cater to developers needing basic PDF operations without relying on external tools or libraries.

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Proposed Solution

Implementation Details:

1. HTML to PDF:

   • Parse HTML content and render it into a PDF format.
   • Support basic text formatting, images, and inline styles.
   • Provide an output file path for saving the generated PDF.

2. Extract Text from PDF:

   • Parse the text content from PDF pages and return it as a string.
   • Handle multi-page documents with proper formatting.

3. Merge PDFs:

   • Accept multiple PDF file paths and merge them in sequence.
   • Output a single PDF document containing all pages.

4. Split PDF:

   • Accept a PDF file and a range of pages to split.
   • Generate one or more PDFs based on the specified page ranges.

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Additional Context

• These utilities will provide developers with essential tools for creating and manipulating PDFs.
• The functionality can serve as a foundation for more advanced features, such as watermarking, annotation, or encryption.

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Pseudo Code

// HTML to PDF
func ConvertHTMLToPDF(html string, outputPath string) error {
    // Parse HTML and write content to PDF
    // Save to outputPath
}

// Extract Text from PDF
func ExtractTextFromPDF(inputPath string) (string, error) {
    // Read PDF file and extract plain text
    // Return extracted text
}

// Merge PDFs
func MergePDFs(inputFiles []string, outputFile string) error {
    // Combine pages from all inputFiles into a single PDF
    // Save the merged PDF to outputFile
}

// Split PDF
func SplitPDF(inputFile string, pageRanges []string, outputDirectory string) error {
    // Extract specified page ranges and save as separate PDFs
    // Save outputs to the specified directory
}

[Turtel216]

I would love to implement this, but it's gonna take me a while since I am in exam season right now. If no one else is interested, I could do it though

[kashifkhan0771]

Sure @Turtel216 - I am assigning this to you.
Good luck for your exams 🚀