Description of the problem
Start with the 1.1 version, AspPDF supports Tagged Image File Format (TIFF), which includes multi-image, image TIFF files.
This article describes how to convert multi-image TIFF to multi-page PDF.
The OpenImage and PdfDocument object OpenImageBinary method to accept an optional parameter that specifies the index within a TIFF file an image-based index is opened (the parameter is for other types of images have been ignored). If the index value is out of range, OpenImage means anything in return.
The following code snippet opens an image file of arbitrary (not necessarily TIFF) and convert it to PDF format. If the file is opened exactly is a multi-image TIFF, this code will be converted into a multi-page PDF it.
Related knowledge of photo editing software: