convert from a picture to pdf doesn't keep the original size

[Removed by request]

I'm using Ubuntu 12.04 dev with imagemagick 8:6.6.9.7-5ubuntu1. I have converted a picture to a pdf but it was on 100% zoom in evince upscaled. But I can't say if convert is upscaling the picture on the conversion or if evince (I'm using evince 3.2.1-1ubuntu1) is upscaling the picture.

Steps to reproduce:

1. Create a white picture with a dimension of 100x100 pixel and save it as test.png.
2. Convert the picture with "convert test.png test.pdf".
3. Open test.pdf with evince and set the zoom level to 100%.
4. Make a screenshot of evince and check the dimensions of the white picture (for example with GIMP).
5. In my case the white picture in evince was at 100% zoom 124x124 pixel.

[Vadim Rutkovsky (roignac)]

Possibly, this is a duplicate of bug #248329?

[Removed by request (removed3425744)]

If it is a duplicate it is maybe a regression.

[broucaries (roucaries-bastien+bugs)]

try to add to convert -density 72x72 and report

[Removed by request (removed3425744)]

This doesn't change anything. The picture in the pdf document is still 24% bigger than it should be.

[broucaries (roucaries-bastien+bugs)]

try to add to convert -density 150x150 and report upstream if it does not work

[Removed by request (removed3425744)]

The dimension of the picture is now 60x60 pixel.

[broucaries (roucaries-bastien+bugs)]

Have tried to report upstream ? If yes please post forum link

[Removed by request (removed3425744)]

I have opened now a bug report: http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=20734

[broucaries (roucaries-bastien+bugs)]

Invalid pdf does not specify size, it is a vector format

[Removed by request (removed3425744)]

I have now find a solution for this problem and posted it in the linked thread: "The argument -page will control a consistent size in the document. In my case I needed just to use "-page A4" to scale the images to the same size as .odt documents."