Legacy ImageMagick Discussions Archive

I've installed ImageMagic 6.8.0.4 on my SLES 11 x64 from source .gz file successfully.
When I'am try convert png-file to a pdf format> next error occured:

convert *.png book.jpg
convert: no decode delegate for this image format `0.png' @ error/constitute.c/ReadImage/550.
convert: no decode delegate for this image format `17.png' @ error/constitute.c/ReadImage/550.
convert: no images defined `book.jpg' @ error/convert.c/ConvertImageCommand/3044.

results of identity command:
identify -list format | grep PDF
EPDF rw- Encapsulated Portable Document Format
PDF rw+ Portable Document Format
PDFA rw+ Portable Document Archive Format

But for identify -list format | grep PNG command result is NULL!

result of rpm -qa|grep libpng comand is:
libpng12-0-1.2.31-5.10
libpng12-0-32bit-1.2.31-5.10

Is this libpng library is delegated to application?

I found libpng.tar.gz files on this link: http://www.imagemagick.org/download/delegates/
, but I've already libpng in the system.

Where I can find missed library for PGN support during conversation?
How I can convert multiple PNG files to one PDF file?

My guess is that png is not installed or not installed where IM can find it or you have multiple versions of png installed. I am inclined to think that it is that png is not installed where IM can find it.

Uninstall png, if you have it and re-install it, then re-install IM afterwards. You may want to check and install other delegates. You can check which ones IM can find by

convert -list configure

look at the line starting with DELEGATES.