pdfimages extracts black rectangles instead of the images

[Chelmite]

When I run pdfimages -f 1 -l 1 -png Z.pdf z-pdfimages, I get 5 images, two of which are black rectangles.

If I run pdftocairo -png Z.pdf z-pdftocairo, I get one image that looks correct.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: poppler-utils 0.30.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.19.0-31.36-generic 3.19.8-ckt7
Uname: Linux 3.19.0-31-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.17.2-0ubuntu1.5
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Oct 15 12:36:10 2015
InstallationDate: Installed on 2013-05-02 (896 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
SourcePackage: poppler
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Karl Kastner (kastner-karl)]

I can reproduce this for certain files in xenial. Most of these files are pdf files that were converted from ps format.

[Sebastien Bacher (seb128)]

Unsure there is really a bug there, the example from example 1 doesn't seem to include images that fail to be extracted? The empty rectangle ones might just be due to the way the pdf is built. That's still behaving the same way under disco