You can download VISCOM Scanner Pro TWAIN PDF SDK 12.0 from our software library for free. The latest installer occupies 38.2 MB on disk. This program is a product of Viscom Software. Our antivirus check shows that this download is virus free.
From the developer:
Support PDF Annotation before save to PDF/A file, add fonts, images, draw text, rotated text , line, rectangle to PDF file.
Has ability to scan multiple pages using a scanner with feeder, automate save to multipage PDF or TIFF when last page scanned.
Has ability to detect paper jam event.
You may want to check out more software, such as Scanner Pro SDK ActiveX x64, VintaSoft Twain.NET SDK or VISCOM Image Viewer CP Gold SDK ActiveX, which might be similar to VISCOM Scanner Pro TWAIN PDF SDK.