Imagemagick: [BUG] convert multiple jpg's to pdf doesn't work properly

[jbirnick]

Prerequisites

• [x] I have written a descriptive issue title
• [x] I have verified that I am using the latest version of ImageMagick
• [x] I have searched open and closed issues to ensure it has not already been reported

Description

In one of the version of imagemagick released in the last days, there was the following bug introduced:
If you convert multiple .jpg files to a single pdf file, only the first image will be converted, then 2 black pages, then some "mini"-pages (?!).

Steps to Reproduce

1. create a new directory
2. drop some .jpg files into it (try it with >5 files)
3. execute convert $(ls *.jpg) result.pdf
4. view result.pdf

System Configuration

• ImageMagick version: 7.0.10-13
• Environment (Operating system, version and so on): Arch Linux
• Additional information: I downgraded to 7.0.10-3 and everything works fine there.

[urban-warrior]

We'll get a patch to fix the problem within a day or two. In the mean-time, add -define pdf:thumbnail=true to your command-line.

[jbirnick]

Your are awesome. Don't stress.