Options for optimizing images ...

Forum for the PDF-XChange Editor - Free and Licensed Versions

Moderators: TrackerSupp-Daniel, Tracker Support, Vasyl-Tracker Dev Team, Sean - Tracker, Paul - Tracker Supp, Chris - Tracker Supp, Tracker Supp-Stefan, Ivan - Tracker Software

Post Reply
Puffolino
User
Posts: 137
Joined: Wed Feb 09, 2011 1:06 pm

Options for optimizing images ...

Post by Puffolino » Mon Apr 29, 2019 2:51 pm

When selecting a single image and doing a recompress, there are quite a lot of compression options available, like JPEG/ZIP.
When creating an optimized document (save as optimized), this option is not available, so I need to compress image by image if I need to shrink the document size very effective.

Any chance to get more options in the Optimize PDF dialog?

User avatar
TrackerSupp-Daniel
Site Admin
Posts: 2407
Joined: Wed Jan 03, 2018 6:52 pm

Re: Options for optimizing images ...

Post by TrackerSupp-Daniel » Mon Apr 29, 2019 5:58 pm

Hello Puffolino,

While It is unlikely to appear in the "Optimize PDF" area (as recompressing can sometimes increase image size depending on settings), this is something we have seen requests for and are looking into.

Kind regards,
Daniel McIntyre
Support Technician
Tracker Software Products (Canada) LTD

Sales: +1 (250) 324-1621
Fax: +1 (250) 324-1623

Puffolino
User
Posts: 137
Joined: Wed Feb 09, 2011 1:06 pm

Re: Options for optimizing images ...

Post by Puffolino » Wed May 01, 2019 11:32 am

Cool.

Sometimes I have to shrink scanned scripts as much as possible - actually the best results are often by using an external graphic editor to save the images in "exotic" formats (e.g. 4 bit grayscale in TIFF format) to get much better compression results than doing this job with the PDFXChange Editor.

Even it wouldn't be used very often, an oprion "Best compression method" or "Automatic mode" for recompressing a single image could be interesting. This would do all compressing variants and display a statistic of the resulting sizes (and the calculation time for compressing). This would be time consuming of course, but would be a good hint which method should be prefered for certain image types (photo, drawing, logos,...)

User avatar
TrackerSupp-Daniel
Site Admin
Posts: 2407
Joined: Wed Jan 03, 2018 6:52 pm

Re: Options for optimizing images ...

Post by TrackerSupp-Daniel » Wed May 01, 2019 9:21 pm

Hello Puffolino,

While we have mused the idea of offer a "best compression method" option, it has been brushed almost completely under the rug for the reasons you mentioned earlier, excessive time consumption.

Do keep in mind the time it already takes to recompress the images. If we were to run all possible combinations of compression, it would multiply the processing time, and would often result in the most damaged version of the image possible, causing many users to discard the image entirely and try again with different settings.

If the majority of people are going to look at it and choose to try again anyway, it is certainly much better to not offer that option and save everyone the wasted time (both from a development and end user perspective).

It is also entirely expected that specialized image editing software will be better at tasks like this. Our products are developed to manipulate PDF documents, not images.

Kind regards,
Daniel McIntyre
Support Technician
Tracker Software Products (Canada) LTD

Sales: +1 (250) 324-1621
Fax: +1 (250) 324-1623

Post Reply