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bernard meunier
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How to set document resolution?

Sun Jun 04, 2017 6:03 pm

Hi,

Assuming you have a lot of pdf created by another tool from images is there a way to
create a script to fix / edit pdf document resolution ?

By example consider an image initialy scanned with 600dpi... you may want to tell pdf
document it is 300dpi... resulting in a bigger printed document (this will be equivalent
to doing 200% without interpolation.

I expeted being able to do this using "Edit doc properties" but don't see such feature.

Hope this is clear enough?
Regards
Bernard.
 
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Tracker Supp-Stefan
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Re: How to set document resolution?

Mon Jun 05, 2017 8:55 am

Hello bernard meunier,

The PDF file format is coordinate based - so any images will be placed at given coordinates and will have given dimensions in the coordinate system of the page, so the DPI will be a result of those dimensions and the available number of pixels in the file. So to "change" the DPI of an image - you will need to resize it - you can do so e.g. by resizing the page it is on (as I understand you want to do that as well) - and select to scale the content as well. So please do give the "Resize Pages" tool a try and make sure to click on the "All Options..." button on the left - to turn on the content scaling too.
However given the coordinate nature of PDF files - I would recommend against resizing the pages now, and instead use 200% scaling when printing them to paper unless e.g. another system can't do that - and needs to get the files at the "right" dimensions.

Regards,
Stefan
 
bernard meunier
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Posts: 32
Joined: Tue May 06, 2014 7:52 pm

Re: How to set document resolution?

Mon Jun 12, 2017 6:57 am

Hi Stephan,

Thanks Resize do the job as expected (I were thinking Resize will change document
size and therefore image quality but in fact no!).

Regards
Bernie
 
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Will - Tracker Supp
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Re: How to set document resolution?

Mon Jun 12, 2017 7:42 am

:D
If posting files to this forum, you must archive the files to a ZIP, RAR or 7z file or they will not be uploaded.
Thank you.

Best regards

Will Travaglini
Tracker Support
http://www.tracker-software.com

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