Comments on: Make JPEG droplet

By: JJ Sereday

JJ Sereday — Sat, 31 Dec 2011 19:27:23 +0000

Thanks so much for this Saved me some time in having to create it myself. Good work – exactly what I was looking for.

By: Simon Heys

Simon Heys — Wed, 21 Sep 2011 09:56:10 +0000

Hi Ian, thanks for your comment. I think you are correct, in fact I half remember having a long email conversation with someone about this very issue. At one point we thought we had found a solution, only to realise it did not work. I don’t think it’s trivial to modify this script to resize and resample in the expected way.

If I thought there was enough demand, I could write a native Objective-C droplet to do the work instead. Could be a project for a rainy day.

By: Ian Scott-Parker

Ian Scott-Parker — Tue, 20 Sep 2011 21:41:29 +0000

Very interesting. Thank you for this work.

“You can force the output dpi by editing the source code.”

Here’s an uneducated fellow’s guess: this seems to only change the relevant JFIF field — amongst others, the Photoshop [Image:Image Size] dialog box [Resolution] uses the EXIF property, which remains unaltered. In the case of existing JPEG files, when using SIPS from the Terminal command line, the file is rewritten (recompressed) unlike some “lossless rotation” routines, with additional unwanted side effects in my case.

The search continues for a way to change the resolution (pixel density for printing or DPI) without otherwise changing the file. All this because TextEdit v.1.6 renders image files dependent upon their EXIF DPI and there seems no other way to change the image size in a TextEdit document without radical destructive editing to the original image file. Even manually editing the Rich Text code (sizes in twips, naturally) seems to have no effect.

My brain is starting to hurt.

By: Simon Heys

Simon Heys — Tue, 23 Aug 2011 08:25:18 +0000

Thanks for reminding me – I’ve recompiled the source in Lion and added it at the top of the page.

By: simon

simon — Tue, 23 Aug 2011 07:46:55 +0000

Not working on Lion anymore… is it possible to create a compatible version? I always loved these droplets – saved me hours and hours …

By: Camilo Bejarano

Camilo Bejarano — Fri, 29 Jul 2011 20:48:58 +0000

Dude you just save me hours of work!

By: Simon Heys

Simon Heys — Mon, 04 Jul 2011 05:43:45 +0000

Hi Frank – I use this app almost every day, so will definitely make sure it works with Lion once I make the switch. Best, Simon

By: Frank

Frank — Sat, 02 Jul 2011 03:09:54 +0000

Excellent program. Do you plan to make this app Universal or Intel based before Lion arrives?

Thanks!

By: justin miller

justin miller — Fri, 11 Mar 2011 01:25:02 +0000

This droplet is unbelievably useful, and just plain awesome. Thank you for unleashing it on the world.

By: Kevin

Kevin — Wed, 03 Nov 2010 12:12:43 +0000

Hey Simon– I have solved the challenge. If there is no background (as shown under Preview/Show Background), then it will cut those areas. My PDFs had that issue where there was a border with no background and so SIPS cut it off. It’s something built into SIPS and what SIPS does. The droplet works wonderful! Thanks much!