Am 29.05.2020 um 10:10 schrieb andreas.sta...@dachser.com:
Hello,
here is a sample include the source. The pdf file is really smaller
the the jpeg file. Why?
Please upload both files on a sharehoster for analysis. Binary
attachments are usually blocked.
Tilman
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Von: Tilman Hausherr <thaush...@t-online.de>
An: users@pdfbox.apache.org
Datum: 27.05.2020 19:52
Betreff: Re: Create pdf files with LosslessFactory
------------------------------------------------------------------------
Hi,
createFromFile is best for JPEG files. Because there the files are used
unchanged. With createFromImage they are decompressed and recompressed
with the Flate filter, this is a lossless compression.
I am surprised that the original JPEG would be 794 kb and the PDF 766
kb. The PDF shouldn't be smaller than the image. Please upload both
files on a sharehoster for analysis.
Tilman
Am 27.05.2020 um 15:32 schrieb andreas.sta...@dachser.com:
> Hello togehter,
>
> if i create a inline jpeg inside a pdf file, with
> LosslessFactory.createFromImage(..) the created pdf file have a size of
> 3293 kb. The same file created with PDImageObject.createFromFile(..)
have
> a size of
> 766 kb. The resolution of the jpeg image is 2480 x 3488 pixels. The size
> of the image is 794 kb. The image should be inserted unchanged in
the pdf
> file.
>
> What is the main difference between creating images with LosslessFactory
> and PDImageObject.createFromFile ? What is in my case the best method?
>
>
>
> Freundliche Grüße / Best Regards
>
> Andreas Staiti
>
>
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