Gif and JPG save for web file sizes in CS2 and CS3

Gif 64 dittered default CS2=2.63KB CS3=4.83KB
JPG CS2Low=1.42KB CS3=4.03KB
JPG CS2Medium=1.90KB CS3=4.51KB
JPG CS2High=3.38KB CS3=5.99KB
Why? Is there any solution besides keep using CS2 for web?
Thank's in advance.
regards
Fernando Bergamaschi

Each of the three JPG files increases by the same amount -- 2.61 Kbytes. That sure sounds like some common header block is being added in CS3. Did you check the "Optimize menu" button next to "Preset" just to make double-sure "Include XMP" isn't enabled? Or some other setting like that? Or check both images in Bridge to see if something is being added.

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Save for Web file size not updaing

I am trying to save out a graphic for the web and I'm noticing that the little number indicating file size is not updating..did something change?
OS X, CS6 Mac Pro, 16GM RAM Yosemite, 10.10.2
Thank you!

It should work. Maybe it needs a reset.
Open Save for Web, press the Option key on your Mac, the Cancel button changes to Reset. Click on it and it should clear it to defaults.
Alternate: Reset Photoshop preferences: Hold down cmd-opt-shift, start Photoshop and click on Yes when the "delete Photoshop settings file" dialog comes up.

CS6 Save for Web image size limit (Retina)

I have been designing for a lot of mobile sites these days, in particular: iphone retina display (640w). Most of the time these designs can be long in the tooth with the height of these documents - exceeding 8000 pixels at times. I noticed that 8000 pixels is the threshold limit for the "save for web" export. Anything greater than 8000 pixels will be downgraded in quality on retina devices by scaling the image. The jpg will still be the correct height and width, but when viewed on an iphone, you can easily see the degradation. Images and text are blurry. This is no bueno when trying to show a client what their site will look like on an iphone.
So my question is, is there a work around? A preference to be changed? Am I missing something to get the full quality of my design comp in order to preserve retina display quality?

Justin, what about your screenshot that I'm posting here:
You posted that as an example of SFW downsizing to 78% to make its output be no taller than 8192 px, resulting in a width of 500 px. The iPhone will scale a 500 px wide image to make it fit the screen's 640 px width.
And my CS6 SFW set to progressive JPEG (or anything else) refuses to allow a dimension to be greater than 8192 px. Here's the message when I try to make it larger:
Likewise, the scale percentage cannot be made greater than the value which produces a dimension of 8192 px.
Anyway, I'm glad you found a solution.

Save as JPG / Save for Web Failing / Crashing Photoshop CC

I just recently moved to CC from CS5. Save as fails everytime. Crashes the app sometimes.
Using a MacBook Air. Not sure what other info y'all might need to diagnose this problem.
Please Help.

You need to pass a full file path to the export command… Probably need to change the extension too.
set myFullFilePath to (path to desktop as text) & docName
export in file myFullFilePath as save for web with options myOptions

Save for Web – Image Size Preview doesn't update

If I use percentage to change a JPG output size the preview either lags (regardless the size/weight of the image) or simply ignores the new value, forcing me to click on the Width/Height field to complete the action. It would be nice to kill the bug!
Running Mavericks with CC 2014

Could you please post screenshots to illustrate the issue?

Looping options in Save for Web - Animated GIF

I find this one rather annoying, in the latest verison of Adobe Photoshop CS6 when creating an animated GIF via the Save for Web dialog box; there is a looping option section that allows your animation to loop forever, or once...
In the previous version, it would remember which setting you selected for subsequent saves. In this new version, it forgets it and always defaults to ONCE; where I want FOREVER... making me forget to check it sometimes, when I'm working fast; and create animations that stop after one loop...
Anyone else experience this annoyance?
-Joe

Seems like people shouldn't have to re-request features that were already features in the last version.
Either Adobe took the "stickyness" of that setting out on purpose, in which case I'd expect nothing more will be done, or they left it out accidentally with the restructuring of the Timeline window, in which case it would be a bug, no?
But Christoph is right in either case - you can help ensure it is seen by posting it on the http://feedback.photoshop.com/photoshop_family/ site.
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Unknown Error when using save for web

When saving a gif using the "save for web" option in Photoshop CC 2014, I get a "Could not complete operation.An unknown error has occurred" message. I am using Mac 10.10.1. I tried deleting the "save for web" pref files but same error happens. Size of the file being saved (large or small) makes no difference. No problems saving files using "save as". Photoshop was uninstalled/reinstalled. Problem is still there.

I think the reason why this question is asked often is because the FAQ entry is pretty lame and incomplete, especially for Mac users that by default have a color managed browser and by default have a screwed up rendering mechanism for untagged images.
Depending on your version of Photoshop, you can convert to sRGB before or during the Save for Web operation.
cesspool13 wrote:
...I have been told that you are not supposed to embed the ICC profile in the document when saving for web because most monitors are untagged.
You convert to sRGB for the systems that do not fully support color management.
and...
You include the sRGB ICC profile for the systems that do support color management.
Doing both covers your bum in most situations. You may choose to omit the ICC profile if you are working on common interface graphics that do not require strict color management. The ICC profile adds a few kilobytes to the file size that are not necessary on lesser graphic elements on a web page.

Script Needed to work with "Save for Web" Tool

I am looking to compress the JPG image files using the Save for Web tool within Photoshop CS2. As you know, this tool yields better results in image quality and file size than the standard Photoshop Save As command.
To this end, I would like to batch process multiple images within multiple sub-folders. Unfortunately, I havent found a process that will allow the use of the Save for Web JPG compression, batch process the JPG files within a sub-folder structure and re-write the images to the same folder.
What I have managed to accomplish up to this point, is create a Photoshop Action incorporating the Save for Web tool. However, the Save for Web menu always prompts to save a file to a specified folder. This seems to be the Catch-22 to the batch processing capabilities. When using Photoshops batch processing feature with this Action, and also enabling include all sub-folders, all the resulting files created are always saved to one specified folder.
I need a script (perhaps Java or Visual Basic) which will run in Photoshop, and allow the use the Save for Web tool (JPG High, Quality 60, Optimized), batch process a series of images contained within a sub-folder structure and then re-write the image files to the same location. Can anyone help with this?

The files must be very large.
On my machine
AMD Athlon 64 3200+ 2.01GHz 1GB Ram
It failed with an uncompressed file 347.6MB (40.9MB on Hard Disc) with not enough memory.
It managed to do a 277.4MB uncompressed file (34.3MB) with no problem although it was slow.
With such large files it might be betted to just do a folder at a time so there are two new vars that you can alter.
MAXJPGSIZE this is the size of the file on the Hard Drive.
SUBFOLDERS setting this to true will include subfolders and false will only process the selected folder.
Paul.
//GLOBAL vars, amend values to suit.
//Maximum size of file in Megabytes to process (This is the file size on the Hard Drive)
MAXJPGSIZE = 34;
// "true" = include subfolders - "false" do not include subfolders
SUBFOLDERS = true;
var imageFolder = Folder.selectDialog("Select the folder with JPGs to process");
if (imageFolder != null) processFolder(imageFolder);
function processFolder(folder) {
    var fileList = folder.getFiles()
     for (var i = 0; i < fileList.length; i++) {
        var file = fileList[i];
if (file instanceof File && file.name.match(/\.jpg$/i)) {
     if((file.length/1024/1024).toFixed(0) < MAXJPGSIZE +1){
              open(file);
var doc = app.activeDocument;
var strtRulerUnits = app.preferences.rulerUnits;
var strtTypeUnits = app.preferences.typeUnits;
app.preferences.rulerUnits = Units.PIXELS;
app.preferences.typeUnits = TypeUnits.PIXELS;
var saveFile = new File(decodeURI(activeDocument.fullName.fsName));
saveFile.remove();
SaveForWeb(saveFile,60);
app.activeDocument.close(SaveOptions.DONOTSAVECHANGES);
app.purge(PurgeTarget.ALLCACHES);
$.gc();
app.preferences.rulerUnits = strtRulerUnits;
app.preferences.typeUnits = strtTypeUnits;
} else
if (file instanceof Folder && SUBFOLDERS) {
       processFolder(file);
function SaveForWeb(saveFile,jpegQuality) {
var sfwOptions = new ExportOptionsSaveForWeb();
   sfwOptions.format = SaveDocumentType.JPEG;
   sfwOptions.includeProfile = false;
   sfwOptions.interlaced = 0;
   sfwOptions.optimized = true;
   sfwOptions.quality = jpegQuality;
app.activeDocument.exportDocument(saveFile, ExportType.SAVEFORWEB, sfwOptions);

Photoshop save for web unknown error

Hi,
I am trying to save my .avi file to animated gif using photoshop save for web option, but i am getting a unknown save for web error. The .avi file is around 1.5 gb. tried to save the file with Photoshop CC and Photoshop CC 2014. My os is Windows 8.1 and i have 8 gb of RAM.
Other details:
Document size : 1800x1200
.avi Frame rate: 50 fps
Please help me

What are the pixel dimensions and the length of the spot?
Can you break up the clip into smaller elements?
I suspect you may be trying to use a file format that is not a good fit for the task.
Why do you want to use gif?

Possible bug in Save for Web -- Color Changes!

Hi,
I'm new to CS3 and also new on the Mac (and also to thiis forum). So I might be overlooking something but I am an experienced user user of Photoshop 7 on a pc. Never had a problem like this.
When I try to save an image with the color #c51076 as a gif using the Save for Web function I get a totally different color. Much lighter!!! I don't get it. I can't get the color I want.
I jjustt found out that iit also messes up webcolors: it swaps one webolorr for another.
Does anyone know a solution?
Thanks!

Thanks for sharing. First let me say I think it's really great that you have shared all the documentation about these color issues. I read your page before posting here, and I tried each of the suggested solutions, and wasn't able to fix it. Maybe it is a problem with the Mac OS and the way it displays images non-color managed images. But it's not like all the images I view on Firefox are dull-just the ones I've edited, because they appeared different in CS3.
As I mentioned above, I am not the only one who is having this problem, despite trying all of the fixes suggested (see the link to forum thread posted above). I think my next step is to schlep my MacBook over to the Mac store and see if they can verify my monitor profile. But if anyone else has any suggestions, please let me know!
Emily

Huge file size with Save for Web but preview is ok

Hi,
I have googled but not found anything about this but I have the same problem on my computer and also on a colleagues computer so it seems it should not be totally unknown.
This is what i do
1 Open a eps file, one color logo, 72dpi, size it to 110x21
2 save for web
3 select png-24 format. preview says file size ~1.3 kB
4 save -> actual file size on disk is 4 kB (ie 3 times bigger file size than it should be)
5 Preview and then right click in browser + save image as gives correct file size (on my colleagues computer this does not work, he always gets the wrong size)
I have also tried with gif and various settings, image sizes etc and the result is the same.
I'm using Windows Vista 32-bit and Photoshop CS4.
Is this a known problem?
Thanks

Thanks for your reply but i don't think that's it. When I check properties on the file in Windows it tells both "Size" and "Size on disk", where the latter is actual size on disk (depending on cluster size) but the size I am talking about is the first one.
Also just to be clear, when I say Preview, I mean clicking the Preview button that opens the file in a browser window. Not the preview within the Save for Web and Devices dialog. So I think this file is correctly created and *should* be the same as if I click Save (but it obviously isn't)
This sounds very much like a bug to me, anyone else who have seen this or can recreate?
Thanks

Curious: How does "Save for Web" reduce the file size?

I do know HOW TO USE "Save for web" -- no questions there. I'm wanting to understand better what's going on under the hood.
When I start with say, an 8x10 JPG at 300 dpi, I understand completely how bringing that down to 72 dpi yields a much smaller file. Simple math.
What I don't understand is how the "Save for Web" function can reduce that smaller file size so drastically at the same dimensions, still 72dpi, with negligible image loss (at least at the 80% quality). Maybe it's just my amateur eyes, but for everyday casual web pages, I can discern no significant difference between the two 72dpi images. (At lower quality settings, I do see differences.)
Can anyone explain a bit more of HOW Photoshop does this? Is it simply compression? For example, is it -roughly- analogous to converting an AIF sound file as an MP3?
Thanks,
cb

Thanks, that worked. I figure there was a setting in there somewhere and was even in the right tab, but didnt think to click on that.

Script to "Optimize to file size" (automatically) in "Save for Web"?

Hello, all,
I'm a novice when it comes to scripts in Photoshop, but I'm really coming to the conclusion that this is the only way to automate the actions I need to do, whithout having to do it one-by-one.
Is it possible to write a Script to automatically choose the option (and settings) to "Optimize to file size" in the "Save for Web" dialog?
Is it also possible to save the file in the document's original folder, instead of a single specific folder, using "Save for Web"?
I have a really big number of different files (some .JPEG, some .PNG, some .TIFF) and I need to generate a single "reference.jpg" in each one of those original folders. It's quite easy to use whatever method to separate all those files in some lists and later open them in Photoshop in small subgroups of files.
I only have a restriction of size (60Kb) for those "reference.jpg" files, and I would like to save all of them, in each document original folder, with the best possible quality within that size constraint.
Here's my problem:
I can easily do that with a very simple action, but, that specific way, I have no control whatsoever over the resulting filesize of those "reference.jpg" files generated. Moreover, I also find the "save for web" command create a more "slim" file, allowing for better quality within my size constraint.

c.pfaffenbichler wrote:
"I can’t make that out in the ScriptingListener code, but maybe someone else knows better or has a Script for the task already.
I seem to remember a thread where it was discussed to save a copy, check its size and overwrite it with different settings if it was too big … that should be possible, but may run longer."
Many, many thanks for your reply, c.pfaffenbichler! I spend the whole day (and night) yesterday learning (or rather trying to learn) about javascript, OOP, and how it should be applied in Photoshop's Scripts.
I was able to modify some snippets of code I found on the web to suit my needs (temporarily):
//SaveforWebSP.jsx
//Save a fixed width image with a size constraint in its original folder
var docRef = activeDocument;
var outputFolder = docRef.path;
NamesaveRef = new File( outputFolder + "/reference.jpg" );
var NewfileRef = new File( NamesaveRef )
// quality/size constraints
var w = 300; // new file width
var MaxSz = 61440; // max. 60Kb
var Qlt = 100; // initial quality 100
var x = 1; // decreasing step
// resize the image to the right width
docRef.resizeImage(UnitValue(w,"px"),null,100,ResampleMethod.BICUBICSHARPER);
// Perform the first SaveForWeb Operation
ExpWeb(NewfileRef, Qlt);
// Keep trying to save the file with max. Qlt, but under MaxSz
while (NewfileRef.length > MaxSz)
      Qlt = Qlt - x;
      NewfileRef = new File( NewfileRef );
      NewfileRef.remove();
      ExpWeb(NewfileRef, Qlt); // Perform a new SaveForWeb Operation, with slightly lower Qlt
         if (Qlt <= 50) {
           alert("The file can't be saved with the desired size AND quality.");
           break // break the loop whenever the quality is as low as 50 (this shouldn't need to happen)
var FileSz = NewfileRef.length/1024;
FileSz = Math.round(FileSz);
// close the original file without saving
activeDocument.close(SaveOptions.DONOTSAVECHANGES);
// SaveForWeb Export, with the desired constraints and parameters
function ExpWeb(FileNm, Qlt)
      var options = new ExportOptionsSaveForWeb();
      options.quality = Qlt;   // Start with highest quality (biggest file).
      options.format = SaveDocumentType.JPEG;   // Save Format for the file
      docRef.exportDocument(File(FileNm), ExportType.SAVEFORWEB, options);
This works, but it takes a long time and keep the HD disk "going crazy" during the time it is processing the images.
This is too bad, because the "Optimize to file size" dialog in the "Save for Web" would have been so much faster, efficient and much less "disk-intensive"...

Save for Web with Optimize File Size for Batch Process

I have a client who needs to be able to run a batch process on jpg images ranging in size from 600KB to 2.5MB optimizing their file size as close to 200KB as possible. The feature is included in Photoshop's save for web optimize dialog but it doesn't work for batch processes. If you record an action with the optimize to file size option set it processes all the images in the batch based on the quality settings required to resize the image you used during recording, meaning if the image you recorded was 1.5MB the quality setting might be 70 percent to hit the 200KB mark but that wouldn't be the correct quality setting for a 600KB file nor a 2.5MB file those would either be too small or too large.
I've done quite a bit of searching both online and in the photoshop scripting forums but I haven't been able to find anything that would point me in the right direction.
My client's paying for this work so if there's someone who knows how to script this who'd rather be paid than just do some pointing we can arrange for that quite easily.
Thanks in advance for your assistance and suggestions.
In case it's of importance we're using Photoshop CS4.

If you don't mind spending a few bucks on a shareware prog, Jpegsizer has the option to save to a filesize.
You can find it here.
http://www.tangotools.com/jpegsizer/register.htm
There is a free trial version, but you can't save files.

Action to save for web leaves too large file size

HI
In earlier versions of Photoshop I could create an action to batch save photos for the web, setting them to save as 600 by 400 and they would end up about 70kb. I could also stop the action and adjust the file size to a set size. With CS3 no matter what I do the files always end up about 500kb!!!
Is this a bug in CS3 or do I have to do something different?
I have to put the files on my old computer to run the action still in Photoshop 7
thanks for any help.

I tried to create a 1 pixel blank and it wouldn't save it, I tried a 5 pixel blank, still wouldn't save it so used the Save As and got a 40kb jpg file. Ran the Action and it ended up as 76kb.
Created a 30 pixel blank square and it ended up 40kb too.
Get info on the files reveals the stated file size is correct.
I created and ran the same action on my son's intel iMac running CS3 and the same result. Tried a tiff instead of a jpg and it ended up even bigger. When paused at the Save for Web window, it says the original file is about 800 kb (the reduced size to 600 by 400 from the original image) and it predicts the final web size will be about 65 to 75kb as it should be, depending on the image. But always ends up about 500kb.
Going through the process manually produces the correct result.
This is getting rather frustrating!!!!!
Would someone be able to try creating the same action on their intel mac running CS3?
All I am doing is reducing the size of say a 3000 by 2000 pixel image to 600 by 400 pixels, applying a very small amount of unsharp mask, then saving for the web to about 70kb. I have the original images in one folder on my desktop and another folder to place the converted files into.
thanks for any more help anyone can offer.
peter

Gif and JPG save for web file sizes in CS2 and CS3

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