Legacy ImageMagick Discussions Archive

I used Magick.Net and Imagemagick to convert the same TIFF file to a PDF file.
But the size of the result file is different.
What's the reason caused this?

ImageMagick:ImageMagick-7.0.4-7-Q16-x64
I converted the TIFF file by command line like this:
Magick test.tif ImageMagick.pdf

Magick.Net:Magick.NET-7.0.4.700-Q16-x64
I converted the TIFF by C# program like this:
using (MagickImage image = new MagickImage("test.tif"))
{
image.Write("MagickNET.pdf");
}

「ImageMagick.pdf」 is 50 bytes larger than 「MagickNET.pdf」.

Look at identify -verbose image.pdf for both pdf files and see what is different.

Thank you for your answer.

I Looked at identify -verbose image.pdf for both pdf files.
Only the following information is different.

Properties:
date:create: 2017-02-14T12:53:43+08:00
date:modify: 2017-02-14T12:53:43+08:00
Pixels per second: 377KB
User time: 2.512u
Elapsed time: 0:02.319

The information of the images is the same.

leinsr wrote: ↑2017-02-13T22:05:27-07:00 Thank you for your answer.

I Looked at identify -verbose image.pdf for both pdf files.
Only the following information is different.

Properties:
date:create: 2017-02-14T12:53:43+08:00
date:modify: 2017-02-14T12:53:43+08:00
Pixels per second: 377KB
User time: 2.512u
Elapsed time: 0:02.319

The information of the images is the same.

Does that mean the file sizes are now the same, since you did not list that as different?

The pdf has 100 images.
According to the results by 「identify -verbose」,
The Sizes of these images are the same.

But the sizes of the result pdfs are different.
pdf1(converted by ImageMagick):40,438,152 bytes
Image1:486KB
Image2:467KB
Image3:486KB
Image4:467KB
...
Image99:486KB
Image100:467KB

pdf2(converted by Magick.net):40,438,107 bytes
Image1:486KB
Image2:467KB
Image3:486KB
Image4:467KB
...
Image99:486KB
Image100:467KB