Hi,
I’m using this library to display PDFs in my Android application. Some of the PDFs I work with contain digital signatures that include a visual appearance (signature image/appearance stream).
Currently, the signature appearance is not rendered by default. However, when using the following configuration:
enableAnnotationRendering(true)
the visual appearance of the digital signature becomes visible.
Since digital signatures are commonly used in signed documents, it would be very helpful if the library could properly support rendering the visual appearance of digital signatures (signature widgets) as part of the PDF rendering process.
Expected behavior
- The visual appearance of digital signatures (signature image/appearance) should be rendered when displaying PDFs.
Current behavior
- Signature appearances are not displayed unless annotation rendering is explicitly enabled.
Library
https://github.com/mhiew/AndroidPdfViewer
Additional context
Many signed PDFs rely on the appearance stream to show the signer’s visual signature. Proper rendering of this would improve compatibility with digitally signed documents.
Hi,
I’m using this library to display PDFs in my Android application. Some of the PDFs I work with contain digital signatures that include a visual appearance (signature image/appearance stream).
Currently, the signature appearance is not rendered by default. However, when using the following configuration:
the visual appearance of the digital signature becomes visible.
Since digital signatures are commonly used in signed documents, it would be very helpful if the library could properly support rendering the visual appearance of digital signatures (signature widgets) as part of the PDF rendering process.
Expected behavior
Current behavior
Library
https://github.com/mhiew/AndroidPdfViewer
Additional context
Many signed PDFs rely on the appearance stream to show the signer’s visual signature. Proper rendering of this would improve compatibility with digitally signed documents.