In another thread someone said there's a way to use JPEG compression in PLD files. This is what I'm looking for, because I store much multipages layout with a lot of images, and the become very big. I know I can use PDF, that makes the file much smaller, but after saving in PDF all text are splitten groups of single chars, and sometimes I need to re-edit the text or use a older saved document to make a new one holding layout and much part of text (mostly changing all images).
So I think it could be very useful to have the choice to save PLD files using JPEG compression, even I know it's lossy. Best of all, it would be if data loss could be avoided for images that are untouched from previous save, but it could be a good option for archiving documents in any case.
PLD with JPEG compression.
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Re: PLD with JPEG compression.
The important chapter in the documentation is "5.5 Working With JPEG-Files".
Short version:
- If a JPEG-image is inserted in a document and saved in PLD-format, only the JPEG data will be saved.
- Editing the image will discard the JPEG data.
- You can compress existing images (gray/RGB/CMYK, no transparency) using "Layout > Image > JPEG Compression".
- The Attributes dialog shows whether JPEG data are existing.
Martin
Short version:
- If a JPEG-image is inserted in a document and saved in PLD-format, only the JPEG data will be saved.
- Editing the image will discard the JPEG data.
- You can compress existing images (gray/RGB/CMYK, no transparency) using "Layout > Image > JPEG Compression".
- The Attributes dialog shows whether JPEG data are existing.
Martin
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Re: PLD with JPEG compression.
Great! Another Photoline useful future. I reduced some 100MB file to less than 25MB, only applying JPEG compression to the images inside the document. But allow me to suggest to add a command that applies JPEG compression to all images inside a multipage document, and in same time, optionally permits to reduce images resolution, cut visible parts of images and apply modification layers. In summary, a command to reduce file size, maintaining document "structure".
Best regards,
Adriano.
Best regards,
Adriano.
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Re: PLD with JPEG compression.
For more serious work it could be great to have JPEG XR lossless and lossy compression option inside PLD files. See my Speed vs Compression tests here: viewtopic.php?f=3&t=6299
PhotoLine UI Icons Customization Project: https://www.pl32.com/forum3/viewtopic.php?f=3&t=6302
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Re: PLD with JPEG compression.
Webp lossless compresses much better than jpeg XR lossless in my tests. Also, jpg XR is a somewhat failed Micosoft experiment, since it is still unsupported by all browsers, excepting MS browsers. And I wonder if the new Edge (based on Chrome's web engine) will actually support it.shijan wrote: ↑Wed 05 Feb 2020 00:52 For more serious work it could be great to have JPEG XR lossless and lossy compression option inside PLD files. See my Speed vs Compression tests here: viewtopic.php?f=3&t=6299
The drawback of WebP would be the max size: 16384px in width and height. Btw, isn't JPG XR also limited to 65k by 65k? This would be too small for certain PLD files.
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Re: PLD with JPEG compression.
So WebP also have lossless option? I didn't test it because thought that 100% quality is still compressed. Also it is useless because don't support 16 bit depth. During high compressed tests i found that WebP is very different from jpeg XR, is smooths image in very aggressive way and image became look very unnatural.
Also WebP is very slow:
Export 8 bit TIFF image to WebP 100% takes 15 seconds
Export 16 bit TIFF image to JPEG XR lossless takes 2 seconds
Some info and list of supported software:
https://jpeg.org/jpegxr/
https://en.wikipedia.org/wiki/JPEG_XR
Also WebP is very slow:
Export 8 bit TIFF image to WebP 100% takes 15 seconds
Export 16 bit TIFF image to JPEG XR lossless takes 2 seconds
Some info and list of supported software:
https://jpeg.org/jpegxr/
https://en.wikipedia.org/wiki/JPEG_XR
PhotoLine UI Icons Customization Project: https://www.pl32.com/forum3/viewtopic.php?f=3&t=6302