Re: Storing an NSImage File
Re: Storing an NSImage File
- Subject: Re: Storing an NSImage File
- From: Gordon Apple <email@hidden>
- Date: Fri, 02 Aug 2013 14:44:07 -0500
- Thread-topic: Storing an NSImage File
That¹s a good point. The main thing is to use a format that is lossless and
easily converted.
Next question. Does anyone know how to get a PieceInfo Dictionary (if it
exists) out of a PDFDocument or PDFPage? Do I have to go outside of Cocoa
to get this?
On 8/2/13 12:28 PM, "Jens Alfke" <email@hidden> wrote:
>
> On Aug 2, 2013, at 10:21 AM, Alex Zavatone <email@hidden> wrote:
>
>>> The only difference between the various bitmap image formats is the space
>>> they take up on disk, and whether they use lossy or lossless compression on
>>> disk. If you want to make sure no data is lost, a losslessly compressed or
>>> uncompressed TIFF is the safest choice.
>>
>> Why not PNG? PNG data chunks for image chunks use zip compression that's
>> lossless.
>
> Also, these days I believe more apps (especially cross-platform) can read PNG
> than TIFF. For example, you can use PNG images in web pages but not TIFFs.
>
> Jens
>
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