"SignDocPDF" is an application that allows users to open a PDF file and add a scanned signature from their photo library. It features four primary functions:

1. **Open PDF Button**: This button allows users to select and open a PDF document of their choice.

2. **Search Signature Button**: Users can tap this button to access their photo library and select a scanned signature image they wish to use.

3. **Add Signature Button**: After choosing a PDF file and a signature image, users can tap this button to place the selected signature at the desired location within the PDF document.

4. **Share Button**: Once the signature is added to the PDF document, users can press the "Share" button. This feature enables them to seamlessly distribute the modified document to their desired destination, making it easy to send signed PDFs to recipients via various communication channels.

"SignDocPDF" is a convenient tool for digitally signing PDF documents, enhancing their usability and personalization while ensuring seamless sharing of the signed documents.