What potential pitfalls should PHP developers be aware of when integrating electronic signatures into PDF documents generated using TCPDF?

One potential pitfall when integrating electronic signatures into PDF documents generated using TCPDF is ensuring that the signature is properly positioned within the document. This can be achieved by calculating the coordinates of where the signature should be placed based on the dimensions of the PDF page.

// Calculate the coordinates for placing the signature within the PDF document
$signature_x = 100; // X coordinate of the signature
$signature_y = 100; // Y coordinate of the signature

// Add the signature to the PDF document at the specified coordinates
$pdf->Image('path/to/signature.png', $signature_x, $signature_y, 50, 20, 'PNG');