Growing Image Size...

Discussions on NConvert - the command line tool for image conversion and manipulation

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rchu2005
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Joined: Thu Sep 01, 2011 10:41 am

Growing Image Size...

Post by rchu2005 »

I am new to NConvert so still trying to learn......

I have written a script to convert multi-page TIF into PDF while doing some masking but the resulting PDF/TIF becomes 200 times bigger than the original. Did I do something wrong? How can I keep the original setting of the image during a conversion?

Here are the steps taken:

- Convert the multi-page TIF (around 600k) into individual JPG files (around 500k-1.5MB but still manage-able).
- Perform some masking on individual JPG using the watermark function. At the same time, some JPGs will be added with text using the text function. (File grew to about 1.5MB-2MB)
- Combine each JPG into a multi-page TIF or PDF (either one is fine) using the "-multi" option but the result file grew to about 120-160MB. I tried using compression for TIF but still didn't help much.

Thanks....
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xnview
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Re: Growing Image Size...

Post by xnview »

Do you use the -c (compression)?
Pierre.
rchu2005
Posts: 4
Joined: Thu Sep 01, 2011 10:41 am

Re: Growing Image Size...

Post by rchu2005 »

xnview wrote:Do you use the -c (compression)?
Thanks for your quick reply, Pierre. Yes I did try -c 7 and -c 8. Any suggestion?

Thanks again.....
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xnview
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Re: Growing Image Size...

Post by xnview »

Please send me the TIFF that you convert into PDF?
Pierre.
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