Joining and compressing multi jpg's

[petermeach]

We have a requirement to join several jpg's and store them efficiently. I've been trying to do this as multipage tifs but with no success. Using a 1/2 Mb test picture, if I save it as a tif it is 3Mb, if i use jpg compression it is 1/4 Mb but not visible in Windows picture viewer (no preview available is the message) and if I use jpg compression I only get 1 picture, not several.

What is the solution please? I've read various threads on this topic but i don't see any resolution. I don't really care how they are saved so long as the file size is sensible and can be viewed. I can see the pictures in the control, but am a little concerned i can't in picture viewer.

This is the code

AxImaging1.CreateImageFromFile(cOutputFileName)
AxImaging1.SaveAsTIFFjpgEx("C:\overdrive\SaveAsTIFFjpgEx.tif", 70)
AxImaging1.SaveAsTIFFjpg("C:\overdrive\SaveAsTIFFjpg.tif")

neither of these produce a multipage image

Aside from that, the control is wonderful

[Loïc]

Hi Peter,

You have 2 (or 3) options:

1: Save to multipage tiff using LZW compression scheme. Unfortunately, this should produce larger document than input.
2: Save all JPEGS to a PDF. You can expect similar file size.
3: Consider GdPicture.NET than can produce multipage tiff with JPEG compression.

Kind regards,

Loïc

[petermeach]

I'll use SaveAsPdf, that seems to compress beautifully, simplest way out too. Thanks for the quick reply