Product Limitations

The following are known limitations of DynamicPDF Core Suite as of v12.

Text Extraction Limitations

• Extracting text from a PDF created with character-shaping sometimes yields incorrect output.
• Text extraction skips characters that are more than 2 bytes.

HtmlArea Limitations

• The HtmlArea class does not support JavaScript.
• HTML form field elements used in an HtmlArea are flattened and not retained as interactive elements.
• The HtmlArea ignores Flash, Java, ActiveX, and other interactive content represented using an Object tag. Instead, a rectangle is rendered in place of the Object tag.

Digital Rights and Decryption Limitations

• The rights-enabled permission of an existing PDF document is not preserved after that document has been merged. The rights-enabled permission acts like a digital signature, and any changes to the document will invalidate it. Since the rights-enabled permission is a proprietary feature of Adobe and not part of the PDF specification, Core Suite cannot revalidate it and add it back to the document.
• DynamicPDF core suite does not support decrypting PDF documents that contain custom or unpublished algorithms (40-bit RC4 and 128-bit RC4, 128 -bit AES 256-bit AES are fully supported).

XFA Limitations

• Form flattening is unsupported for XFA PDFs.
• XFA form filling is supported only for static XFA forms with a fields entry.

NetStandard DLL. Limitations

• The BitmapImageData class is not supported, as it represents the image data created from System.Drawing.Bitmap.
• System.Drawing.Bitmap (Ex: Creating an image using a bitmap object) constructors are unavailable.
• The CanLoadSystemFont and LoadSystemFont Font class methods are not supported.
• The DrawToWeb method of the Document class is not supported.