Reducing image file size ???

i dont this accidentally and dont know how to do it again, i think it invloves iphoto/preview and exporting or saving as.....
basically i have a batch of digi cam pics averaging at 3mb and want to reduce to like 150kb each like ive managed to do unintentionally before
dont want to export in iphoto or create workflow where you have to specify pixel size ratios because i dont want them to be limited size-wise, just want to do it the way i did before, mac done most of the work
if anyone knows what i mean or has an alternative solution, it would be much appreciated, thanks

dont want to export in iphoto or create workflow where you have to specify pixel size ratios because i dont want them to be limited size-wise, just want to do it the way i did before, mac done most of the work
But you don't know how you did that and there's no way anyone else can know either. I suspect that you've accessed the files in the DATA folder of the iPhoto Library Folder - these are the thumbnails that iPhoto creates and uses for display.
It is strongly advised that you do not move, change or in anyway alter things in the iPhoto Library Folder as this can cause the application to fail and even lead to data loss
Regards
TD

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I have tried the Format>Image>Reduce Image File Size, as well as File>Reduce File Size, but in both cases, those options are grayed out.
What am I doing wrong? All I really want is thumbnail versions of my image files.
I don't understand what the Reduce Image File Size command would be used for, if it doesn't work for this?

When you insert a picture in a cell, it's used as a background.
To do that, the app keep it in a size allowing it to accomodate the larger cell size permitted.
If you want to get small images matching the cell size which you use, you must reduce the picture by yourself before inserting it. For instance, cells are often 72 * 16 pixels ones so you may reduce your pictures so that thir width become 72 pixels.
Of course, if the user enlarge the cell, the picture will become highly pixelated.
Look at this example.
In B4 is the original : 202 x 177 pixels
In C3 is the reduced one : 72 x 63
in B2 is the reduced one in a 202 x 177 pixels cell. It's awfully pixelized
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Yvan KOENIG (VALLAURIS, France) samedi 10 septembre 2011 16:50:24
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What is image dpi after "Reduce Image File Size"

Does anyone know the resulting image dpi after using the "Reduce Image File Size" command in pages? My mother is trying to prepare some things for pre-press, and can't send her document to the printing press, because the pages docs are friggin huge! I'm trying to give her the easiest option for resizing all of the many images in the document, but don't know if this is a viable option if the end product needs to be printed. I need the output to be at least 300dpi.

As fruhulda wrote, asking Pages to apply changes to the pictures isn't the good path.
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My practice is :
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Using Pages with iOS. How do I reduce image file size when I create a document with embedded images?

Hi,
I have created an annual family news letter in Pages on my iPad which incorporates pictures of events, holidays, occasions etc etc. I've then gone to covert it to pdf with the intention of sharing it via email but get a warning message about the resulting file size (in this case 16Mb).
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Thanks Mike

(1) you are asking about Pages for iOS in a forum dedicated to Pages for OSX.
Most of us aren't using Pages for iOS so it would be more efficient to ask in the forum dedicated to iWork for iOS (at this time this discussion area isn't divided in three areas).
https://discussions.apple.com/community/app_store/iwork_for_ios
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Drop the unneeded areas, reduce the resolution in tools dedicated to image processing before inserting them.
Yvan KOENIG (VALLAURIS, France) mercredi 21 décembre 2011 18:32:19
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My iDisk is : <http://public.me.com/koenigyvan>
Please : Search for questions similar to your own before submitting them to the community

Reducing image file size for web use without pixelation

Can anyone help me figure out how to best reduce images for fast web loading (in slideshows in Muse). I have done the save for web in PS and they are super pixelated now. The only versions that do not lose quality are the original size and they are huge files. Any help is appreciated.
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** Reduce jpg file size...returns black image

Hey Guys,
I have this function to reduce the image file size.
It works but returns a black image when I view it.
This code is what I have found on other boards...I just can't seem to get it to work..
Any ideals??
Phil
======================================
                 try
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                         float widthOver = (float)(height - MAX_HEIGHT) / (float)MAX_HEIGHT;
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                         try
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                         catch (Exception buffError)
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// ==============================================================
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//          BufferedImage bufferedImageOut = new BufferedImage(imageIn.getWidth(null),
//                                                             imageIn.getHeight(null),
//                                                             BufferedImage.TYPE_INT_RGB);
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                                             pass_newHeight,
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>
Hi Andrew,
Thanks for your reply..Your links sent me to this ...
Page Not Found
We are sorry, the page you have requested was not found on our system. >Ahh. That is because I foolishly hand edited those links and did not check them. They included 'api' twice.
In any case they were simply the links to the javadocs for those two classes.
Search [google for bytearrayoutputstream|http://www.google.com.au/search?hl=en&q=bytearrayoutputstream&meta=] and you will end up in the same or similar place.
As to using them, you simply put an appropriate ByteArray stream in place of the other streams (e.g. File based) that you were using.
I'd have to search for an actual example, but you could do the same (probably faster).
Edit 1:
Adding 'imageio' to 'bytearrayoutputstream' as a search led to this as top hit [Memory Efficiency of BufferedImage and ImageIO|http://forum.java.sun.com/thread.jspa?threadID=5261937&tstart=0].
Edited by: AndrewThompson64 on Jul 6, 2008 2:37 PM

Email-to facilitate emailing a photo by gmail or AOL, I reduce the file size. Is it better to reduce the image size or increase the jpg compression?

To facilitate emailing a photo by gmail or AOL and avoid overwhelming the recipient's screen, I reduce the file size. Is it better to reduce the image size or increase the jpg compression? I have been making a duplicate image of 35 MB and reducing the image size to 8"x12" at 72 resolution giving a file size of 1.4 MB. Then I SAVE AS a jpg of medium compression giving a file size of about 111 KB. Overkill?

Go to File>save for web.
I usually make the long side 800 px
At the bottom of the dialog, check "constrain proportions."
At the top, select JPEG in the dropdown for the file format.
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A simple and free way of reducing PDF file size using Preview

Note: this is a copy and update of a 5 year old discussion in the Mac OS X 10.5 Leopard discussions which you can find here: https://discussions.apple.com/message/6109398#6109398
This is a simple and free solution I found to reduce the file size of PDFs in OS X, without the high cost and awful UI of Acrobat Pro, and with acceptable quality. I still use it every day, although I have Acrobat Pro as part of Adove Creative Cloud subscription.
Since quite a few people have found it useful and keep asking questions about the download location and destination of the filters, which have changed since 2007, I decided to write this update, and put it in this more current forum.
Here is how to install it:
Download the filters here: https://dl.dropboxusercontent.com/u/41548940/PDF%20compression%20filters%20%28Un zip%20and%20put%20in%20your%20Library%20folder%29.zip
Unzip the downloaded file and copy the filters in the appropriate location (see below).
Here is the appropriate location for the filters:
This assumes that your startup disk's name is "Macintosh HD". If it is different, just replace "Macintosh HD" with the name of your startup disk.
If you are running Lion or Mountain Lion (OS X 10.7.x or 10.8.x) then you should put the downloaded filters in "Macintosh HD/Library/PDF Services". This folder should already exist and contain files. Once you put the downloaded filters there, you should have for example one file with the following path:
"Macintosh HD/Library/PDF Services/Reduce to 150 dpi average quality - STANDARD COMPRESSION.qfilter"
If you are running an earlier vesion of OS X (10.6.x or earlier), then you should put the downloaded filters in "Macintosh HD/Library/Filters" and you should have for example one file with the following path:
"Macintosh HD/Library/Filters/Reduce to 150 dpi average quality - STANDARD COMPRESSION.qfilter"
Here is how to use it:
Open a PDF file using Apple's Preview app,
Choose Export (or Save As if you have on older version of Mac OS X) in the File menu,
Choose PDF as a format
In the "Quartz Filter" drop-down menu, choose a filter "Reduce to xxx dpi yyy quality"; "Reduce to 150 dpi average quality - STANDARD COMPRESSION" is a good trade-off between quality and file size
Here is how it works:
These are Quartz filters made with Apple Colorsinc Utility.
They do two things:
downsample images contained in a PDF to a target density such as 150 dpi,
enable JPEG compression for those images with a low or medium setting.
Which files does it work with?
It works with most PDF files. However:
It will generally work very well on unoptimized files such as scans made with the OS X scanning utility or PDFs produced via OS X printing dialog.
It will not further compress well-optimized (comrpessed) files and might create bigger files than the originals,
For some files it will create larger files than the originals. This can happen in particular when a PDF file contains other optomizations than image compression. There also seems to be a bug (reported to Apple) where in certain circumstances images in the target PDF are not JPEG compressed.
What to do if it does not work for a file (target PDF is too big or even larger than the original PDF)?
First,a good news: since you used a Save As or Export command, the original PDF is untouched.
You can try another filter for a smaller size at the expense of quality.
The year being 2013, it is now quite easy to send large files through the internet using Dropbox, yousendit.com, wetransfer.com etc. and you can use these services to send your original PDF file.
There are other ways of reducing the size of a PDF file, such as apps in the Mac App store, or online services such as the free and simple http://smallpdf.com
What else?
Feel free to use/distribute/package in any way you like.

Thanks ioscar.
The original link should be back online soon.
I believe this is a Dropbox error about the traffic generated by my Dropbox shared links.
I use Dropbox mainly for my business and I am pretty upset by this situation.
Since the filters themsemves are about 5KB, I doubt they are the cause for this Dropbox misbehavior!
Anyway, I submitted a support ticket to Dropbox, and hope everything will be back to normal very soon.
In the meantime, if you get the same error as ioscar when trying to download them, you can use the link in the blog posting he mentions.
This is out of topic, but for those interested, here is my understanding of what happened with Dropbox.
I did a few tests yesterday with large (up to 4GB) files and Dropbox shared links, trying to find the best way to send a 3 hour recording from French TV - French version of The Voice- to a friend's 5 year old son currently on vacation in Florida, and without access to French live or catch up TV services. One nice thing I found is that you can directly send the Dropbox download URL (the one from the Download button on the shared link page) to an AppleTV using AirFlick and it works well even for files with a large bitrate (except of course for the Dropbox maximum bandwidth per day limit!). Sadly, my Dropbox shared links were disabled before I could send anything to my friend.
I may have used a significant amount of bandwidth but nowhere near the 200GB/day limit of my Dropbox Pro account.
I see 2 possible reasons to Dropbox freaking out:
- My Dropbox Pro account is wronngly identified as a free account by Dropbox. Free Dropbox accounts have a 20GB/day limit, and it is possible that I reached this limit with my testing, I have a fast 200Mb/s internet access.
- Or Dropbox miscalculates used bandwidth, counting the total size of the file for every download begun, and I started a lot of downloads, and skipped to the end of the video a lot of times on my Apple TV.

How can I reduce the file size of a pdf when exporting?

I don't want to just choose between high quality print or smallest file size.
I want to export it from 60MB to 40MB.
Can I do this manually? When I use smallest file size the quality is too low and the content looks bad.
But high quality print exports my PDF at 60MB which is too big.

You cannot simply legislate the size of a PDF file. If you content is primarily text and vector, there is not much at all you can do to reduce PDF file size other than to cut out content. Otherwise, the only other variables are those of downsampling and compressing the raster images from your content.
You must be very careful in choosing the PDF export settings. The “smallest size” settings yield PDF files that realistically really are not fit for printing and may mess up any CMYK colors. The “high quality print” and “PDF/X-4” settings yield best print output, but yield the largest PDF files since they do less image resolution downsampling and only the maximum quality lossy JPEG compression.
I would recommend that you start with either the “high quality print” or the “PDF/X-4” settings and make a custom set of export settings. Assuming that you aren't going for offset or gravure printing, change the color image and grayscale image downsampling values from 300 and 450 to either 200 and 275 or no less than 150 and 225. If that doesn't give enough file size reduction, change the compression image quality from “Maximum” to either “High” or no less than “Medium.” Beyond these changes, you may end up with PDF files that will neither print nor display with any reasonable quality.
- Dov

Exporting a book to pdf - any way to reduce the file size?

Hi,
So I have made a book using iPhoto and would like to send a pdf copy of it to another person who will fill in the texts. I am able to save the book as pdf via the print menu but the resulting file is over 300 mb in size (the book has only 20 pages)! On the one hand i like the fact that iPhoto is not downsampling my photos but it's a bit difficult trying to send a 300+ mb file over email Is there any way to create a pdf with the images compressed so i could send it as an attachment?

http://beyondteck.blogspot.com/2008/11/how-to-reduce-pdf-file-sizes-on-mac.html
Google is your friend.
Regards
TD

Reducing PDF File Sizes

We create and use numerous pdf files, some with fill-in fields and some without. Is there a way to reduce the file size without adversely affecting response time to open the file? Some of us are running Acrobat Professional version 7 and others are running version 8. Some of us have Windows XP and some have Windows 2000.
Any help you can give us would be greatly appreciated.
Thanks.
Ken K

>I thought that if a file was compressed in some way that it might take some time to decompress the file.
I see - entirely reasonable to think that. However, almost every PDF
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* reducing image resolution
* using more agressive JPEG compression
* deleting stuff you can live without
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JPEG 2000 compression is stronger and a bit slower, but probably
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I flatten the image and go to save as .pdf I un-check all of the options in general.
In compression, I have tried a dozen different combinations and the way I've found to get a document that is not pixelated or blurry is to use jpeg 2000 > lossless or jpeg > maximum.
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How are they doing this?!

Delete all unused, invisible layers.
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Post a preview of your pdf and we can comment further on how to reduce the file size.

How to reduce jpg file size, not pixel dimensions?

I am preparing images for the web and I really have 2 questions: one about gifs, and one about jpgs.
My standard procedure is to reduce the image to the desired pixel dimensions at 600 dpi
That gives me a crisp small image. then I either use it as is if the file size is low enough (I try for under 600 kb) or convert it to a gif with the save for web and devices tool.
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2) If I try to reduce the file size of the jpg in the image size box I set the resolution lower ( 400, 300), which lowers the pixel dimensions and the filesize, but I don't want to cahnge the pixel dimensions. And If I reset the pixel dimensions back to the size I want them, even though it is a lower resolution the file size doesn't change. How to reduce jpg file size using only the resolution, not pixel dimensions? PS I have tried messing with checking and unchecking the 3 little boxes( scale styles, constrain proportions, and resample) but nothing has worked.

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I do not have the original doc. I did not make it. I am just trying to reduce the size to put it on the web.
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I have been retouching some pictures for use in a photo book but notice that each time I do so, the file size decreases fairly significantly e.g from 4MP to 2MP.
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Thanks in advance

Where are you seeing this size reduction? What format are the original photos?
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Reducing image file size ???

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