Digital Image and File Size

Other than using an Image editing App such as iPhoto or Photoshop Elements, is there a way to figure out or calculate the file size (in MB) of an image containing xx number of pixels? Thanks, Bob

Robert:
To add to Barbara's post, you can set the pixel dimensions and dpi to what you need in PS/PSE and then do a Save As where you'll get a slider to set the quality level and it will tell you what file size that will result in.
However, as Terence pointed out, some trial and error in exporting out of iPhoto and setting the dimensions to what you want and selecting a different quality level will quickly tell you what you need to achieve those specs.
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've created an Automator workflow application (requires Tiger), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. It's compatible with iPhoto 08 libraries and Leopard. iPhoto does not have to be closed to run the application, just idle. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.

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Lightroom, Photoshop, Image and File Size | Adobe Evangelists - Julieanne Kost | Adobe TV

In this episode of The Complete Picture, Julieanne explains how LIghtroom determines the file size and resolution of a file when using the Edit in Photoshop command.
http://adobe.ly/YasSCQ

Have you tried, emptying your cache in your browser? Also, try a different browser ie chrome, safari, firefox. If your problem persists please send me an email with a detailed systme configuration spec to [email protected] and we can investigate offlist further.
Thanks!
Mike Burton
Adobe TV Administrator

Shedding light on export settings and file size

I am trying to learn about exporting images and file size. I have a combination of RAW and JPEG images in my library. For the sake of this discussion, I am going to limit this to JPEG's. I need to export my images, so that I can then upload them to an external photo processing site like Kodak.com. I was going to export versions of my images because I have made adjustments to many of them. I was going to choose the top level preset of "JPEG - original size." For the sake of example, the file that I try exporting this way has a file size (in Aperture) of 1.94 MB. After exporting it (with a DPI of 72) and a color profile of sRGB IEC61966-2.1 (I am not sure what the significance of the DPI and color profiles are either), I get an exported image with a file size of 4.6 MB. When I export the master image, I get a file size of 2.0 MB. I'm completely confused and at a loss as to what is going on here.
Can someone please shed some light on how to go about exporting images so that I can be certain that I am exporting the best quality image possible.
Also, and possibly more importantly, I export image files to sites like MobileMe Galler, Flikr and Phanfare, etc, for the purpose of archiving my images and now I am not sure if the files I am exporting are of the optimal most quality they can be. Do these settings have any bearing on the images that are being sent to my archival folders?
Thanks in advance for any input on this important topic.
Mac

This confusion is because of the way Jpg files handle data. Jpg is a kind of file that compresses data to achieve a balance between image quality and file size. The jpg file that your camera saves to disk is also compressed, that's why the difference in size between a 2 MB jpg and the same image in Raw is for example 18 MB.
Jpg is a lossy compression format, every time you save a jpg some compression is applied, say after editing in Photoshop. Aperture must be reading your jpg masters to export jpg files to disk, so the difference in size should be the compression quantity applied to the newly created jpg file. I could have a 1 MB jpg file previously compressed with a quality level of 7, but if I export it at a compression quality of 10, the file could easily become a 2 MB file. The problem is quality doesn't increase with file size when the original file is a jpg.
Also some files include a preview image inside the file, increasing the final file size. The color profile embedded should't increase size by much, since most camera jpg files already include a color profile embedded (color profiles tells computers to display color consistently between applications and peripherals like printers. sRGB is widely used for images published on Internet).
As for the images you are sending to the archival folder, I would suggest you to export the masters, instead of exporting a new jpg file from an already compressed jpg master.
I know this is a complex subject so I hope I haven't confused you.

InDesign Transparency Effects - Problems with Image Quality and File Size

Hello,
We are experiencing new problems exporting InDesign files to PDF.
To summarize, though our largest workflow is to create files for offset printing, we also deliver our work to PDF for mounting on a website so our clients can download directly from the web. Our new problem is Transparency Effects, and creating a PDF that will both have a high quality (or resolution), and be a small file size.
We are working with multiple page documents (24 to 48 pages), and would very much like to work with InDesign Transparency Effects. However, after spending much time testing a variety of PDF types, we are finding there is a radical difference between quality and file size. I was curious if anyone has had these problems, and if there is a simple answer. InDesign is an incredible program that allows us to design on the fly with Transparency Effects, but, if we are going to experience these problems, we will have to eliminate these wonderful tools.
Can you help me or lead me to information online that will help.
Thank you,
Lain

Please don't post in multiple forums. Your question has nothing to do with the PDF language and specifications, but rather PDF workflow or InDesign. I've responded to your other posting and am closing this thread.
- Dov

How to reduce image's file size in Preview?

I am in Preview Version 5.0.3 (504.1). I have a PDF file that is 3.7 meg. in size. That is a big large for what I want to do with it. I would like to reduce its size to something a bit more manageable.   The Preview Help gives these instructions:
To reduce an image’s file size without changing its dimensions:
Choose Tools > Adjust Size.
Select “Resample image.”
Enter a smaller value in the Resolution field.
My problem is that in my open window for this file the "Adjust Size" tool is dimmed. I cannot choose that tool as instructed.
Does anyone know why and how to get Preview to reduce the size of a PDF file?

try File-Save As...
& choose format:pdf    quartz filter:reduce file size
pick another name to check the results - there's no undo

Pixel Dimensions and File Size

Can anybody please explain the relation between pixel dimensions and file size?
Being naive, (or straight-forward if you prefer) I had assumed that pixel dimensions wide times pix dimension high = file size. Wrong!
For instance a .JPG file 374 X 500 has a file size of 41,275 bytes. But 374 times 500 = 18,700 so the two are different issues.

Thanks Rich. It kind of sounds like you know something about this.
I see 1 pixel, and 24 bit color would make 24 bits at 8 bits to a byte, so there's the 3 bytes.
I selected a certain photo and used the APPLE i command to see if could find if it had 8 bit color or, whatever. That infomation was not on the info function, but it did say something about RGB color profile.
Is 8 bit color a near certain bet in most applications, or was that just for the sake of illustration?
I Googled 8 bit color and go to a Wikipedia Article
http://en.wikipedia.org/wiki/Color_depth
which explained a lot, but its more technical depth than what I'm prepared to deal with. The net net, as far as I can tell is that image size (before compression) is dimension times color depth in its native mode, but I suppose what the native mode is and what the displayed mode is could be separate issues?
I was under the impression that the compression in JPG formt files comes out, or is decompressed, when the photo is printed or displayed? No?

I print 2 pages to pdf and file size is 600k, I print 1 additonal page and file size goes to 6M, what would cause this (graphics are same on all pages)

I print 2 pages to pdf and file size is 600k, I print 1 additonal page and file size goes to 6M, what would cause this (graphics are same on all pages).
I know the colour graphic shading in the document that causes the issue of larger file size, but it doesn't make sense that printing 1 additional page with same information as first 2 pages would cause this.

I print 2 pages to pdf and file size is 600k, I print 1 additonal page and file size goes to 6M, what would cause this (graphics are same on all pages).
I know the colour graphic shading in the document that causes the issue of larger file size, but it doesn't make sense that printing 1 additional page with same information as first 2 pages would cause this.

I'm using iphone 5 but its camera is not properly working. all the images i'm clicking are of dimension 600X800 and the size of the image is just 60-70 kb. now please tell me how to increase the dimension of images and its size.

i'm using iphone 5 but its camera is not properly working. all the images i'm clicking are of dimension 600X800 and the size of the image is just 60-70 kb. now please tell me how to increase the dimension of images and its size.

''rojere [[#question-1055991|said]]''
<blockquote>
i try to keep my thumb palms off the mouse pad when i am typing but every now and then my screen resizes larger or smaller until i take my left palm off the keyboard base its only when my left palm is resting on the base next to the touch pad. i type pretty fast so it gets annoying and yes it also jumps screens or reverts back to previous message and i have to choose ctrl z to undo and get back to my message i was typing... it also switches tabs on me as well... not sure why my palm being on the left of the keypad on the base should effect anything but it does after a while. and i have to stop what i am doing...and go to the firefox menu and change the screen size back down to 100% sometimes it goes up to 200-300 other times it goes down to 70-80% i find it annoying i i wish there was a way to turn off the screen resize in the setup panel. if its just left to be 100% i am happy with that... i don't need it to be bigger or smaller... there should be a way to LOCK it down... i understand that there are people out there with eye problems and needs to have the screen size increase using the + or - but there should be a lock so it just stays no matter what is happening on my keypad or touch pad or base of the pad... that screen size will not increase or decrease. unless i turn off the lock... perhaps this is something they can implement in the next version or do a quick update of the browser
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sorry that is all greek to me thanks for attempting to explain what you were trying to explain sorry i just not tech person to be able to understand or where to begin ... have good day and thanks for again trying

Changing Images from CMYK to RGB and file size

Hello and Thank You in advance...
I'm new to Keynote and I created a slideshow with CMYK image and it is a certain size. When I resaved the images (same name, same location) and resaved the Keynote document, there is no change in file size. Is there a way to update the images in the slideshow?

Keynote puts the images INSIDE the .key file.
The best way to fix this is Control-click on a copy of your .key file and choose Show Package Contents.
Then select your NEW images in the finder and choose COPY (I know, it sounds weird, but the finder in OS X can use the Copy option to actually copy files).
Then click into the open .key folder and PASTE. You should get a notice that the images inside the folder already exist and do you want to replace them. Choose yes.
Close the folder and open the .key file and see if it worked okay.

Reduce image quality (and file size)

Is there a simple way to reduce the quality of all backgroung
images ? (there are all bitmap images, about 3 MB each of them)
I imagine that by reducing the image quality, the file size
will be less huge...
But I wasn't able to find a way to do that...
(the option about JPEG quality in project/preferences has no
effect, because all background images are bitmap... )
Any idea is welcome !
Valérie

Hi Valerie
I have been doing some research on this -- the issue of file
size (relating to both .cp and .swf) crops up a lot on this forum,
so I wanted to find out which were the critical factors relating to
images.
My findings show that there are two critical factors:
-- Slide Properties: Quality (High, Standard, JPEG,
Optimized)
-- Format of original image file (used for slide background
or inserted image object)
To summarize the results of my testing:
Slide Quality
Changing the slide quality from High
to Standard or JPEG makes little or no difference to the size of
the .cp file but can *significantly* reduce the size of the
.swf
This is an especially useful way of
dealing with the very large .swf file sizes caused by importing PPT
slides
A .swf consisting entirely of
imported PPT slides with complex backgrounds may be reduced to less
than 10% of its original size by changing the quality setting for
each of the slides to JPEG and using a JPEG image quality setting
of 75%.
Format of original image file
For complex images such as photos,
the best image file format to use is (oddly) .bmp -- although it
results in a larger .cp file than other file formats (such as .jpg
or .png), it generates the smallest .swf output.
The benefit of using the .bmp format
is less marked if you have set slide quality to Standard instead of
High, but it can still cut the file size of the .swf output by up
to 50%
For slides using a quality setting of
JPEG, there appears to be no difference in resulting .swf file size
between .bmp or any other image file format
A final comment: it is interesting to compare the size of the
.cp and resulting .swf for different Captivate projects. There is
typically an assumption that the .swf file will be smaller due to
compression. However, this is not always the case. For example, I
tested one project that used High slide quality and images that had
been inserted from .jpg files -- the generated .swf file was over 4
times larger than the .cp file. However, when I changed the quality
setting for all slides to JPEG, the .swf file reduced to less than
50% of the size of the .cp file.
I hope this information is helpful -- please contact me if
you'd like to see the detailed test data.
Best regards,
-Matthew Ellison

Final Cut Pro exporting Quicktime movie and file size

I make short stop motion animations in FCP and usually when I export using current setting the file size is about 230MB for 60 seconds movie. However with the current project the exported quicktime movie file is only 32.1MB for 57 seconds movie. I don't think this is normal even though I set it with "current setting" and check off the make movie self-contained box.
How could I make the export setting back to normal so the exported quicktime movie will still be in high quality in a big file size?

Hi Ian,
it looks clear and same quality as usual. Maybe this is just how it is.
I am still worried because I exported another project to test and this one also is now exported into reduced file size. This is a 60 seconds movie and when I last exported, FCP created a 225.2MB quicktime file and when I exported exactly the same project again just now it is only 22MB... again, this is not self-contained movies.
To be honest with you I am really not familiar with digital settings, and I was trying to figure out export setting for a required file size and aspect ratio etc. for a projection the other day and it has been since then that my FCP started exporting smaller size QT files.
My project is in 4:3 ratio and all images on video sequence are digital still images. If you could kindly point out some places to look at to make sure that the settings are correct, that might be helpful (?)
thanks much!

Animated GIF--Quality and File Size

I'm having a hard time getting a quality image and a decent file size.
Even if I save animated GIFs and open with PE an try to resave them, the motion is choppy and the file size is more than double the original.
For example, the following image is less than 10K and plays quite smoothely, but no way can I duplicate such a simple graphic under 10K:
http://thequackshack.com/forums/radio/style_images/Borderli-546/ad_banner.gif
It also seems that others can control the duration of frames individually...
Most of my GIFs end up around 300K, which will not be accepted. A compromise of poor quality will also not be considered.
What can I do?
I've tried lowering Dither and colors, but the results are poor. My graphics will not be used if they are so large or of poor quality.
Here is a couple that I made:
http://thequackshack.com/forums/radio/uploads/post-176-1135532612.gif
http://thequackshack.com/forums/radio/uploads/post-176-1135723565.gif
PSE3, WinXP Pro

Cuc
I am not an animation expert, but I copied two of your examples. On the example you say is under 10K, there are about 35 layers. On your example there are about 65 layers. I'm wondering if reducing the number of layers would get you what you want.
As for controlling duration of frames, I assume you want Frame 1 to be 0.5 second, Frame 2 to be 1 second etc. I think PSE puts a uniform time between frames. This can be adjusted, but it is adjusted all frames. One workaround I've seen is to copy a layer. So if the timing interval is 0.5 seconds, you would have the same image show for 0.5 seconds X 2 = 1 second.
This is about all I know on animated GIFS.

Photoshop PDF and File Size...And Into Acrobat

I have an 8x10 at 144 ppi
I Save As Ps PDF> Compression> Options> DO NOT DOWNSAMPLE
Compression: JPEG> Image Quality: MAX (gives me 6mb file)
Compression: JPEG> Image Quality: MEDIUM (gives me 9mb file)
Ps> Save As JPEG gives me 840kb file
HOW can I get Ps to Save a PDF in the JPEG file size?
I want to set the resolution and quality in Ps and SIMPLY move it to a PDF...

Bingo, unchecking Preserve PS editing fixed the problem...thanks

Digital Imaging missing files

I cannot use scan functions on my Windows 7(64) PC . I have used the Print and Scan Doctor and have downloaded, installed and unistalled many times the newest drivers. The uninstall/install hangs up because a file (or more) is corrupted or missing. The last message referred to C:\ProgramFiles(x86)\HP\Digital Imaging\bin\hpotradd.dll. I think I need to install Digital Imaging to replace or repair the missing files and simply trying to install the newest drivers doesn't work. Is there an ability to download and install just Digital Imaging? I have the printer installed on a local network and the printer functions work fine on my Windows 7 (64) laptop.

Hi @Literal1
I would like to help you with your Digital imaging. The best think to do is perform a complete comprehensive uninstall and reinstall of the full feature software and driver.
Hold down the Windows Logo key () on the keyboard and the 'R' to open the run box, type %temp%
Delete all files and folders from the temp folder. Choose skip if any pop ups appear saying any of the files could not be deleted
Download the software and choose to save as, save to desktop >PS_AIO_06_C309g-m_USW_Full_Win_WW_140_175-4.exe
After the software downloads and extracts, open the temp folder again, use the instructions from step 1.
Look for, and open the folder starting with 7z (Example: 7zS2356)
Open folder Util
Open folder CCC
If you have an HP computer run the L3uninstall.exe. If you have anon-HP computer run the L4uninstall.exe
When the uninstall has completed restart the computer
Follow these steps to reset the registry settings and options for Windows Installer.
Hold down the Windows Logo key on the keyboard and the 'R' to open the run box
In the Open box, type msiexec /unregister, and then click OK.
Hold down the Windows Logo key on the keyboard and the 'R' to open the run box
In the Open box, type msiexec /regserver, and then click OK
*Note: there is a space between the c and the /
If you have any difficulty with this step, please use this link to perform it another way. Restarting Windows Installer
Run Disk cleanup from Accessories\ System Tool < How to Delete files using Disk Cleanup
Download and install the latest version of Adobe flash player http://www.adobe.com/support/flashplayer/downloads.html
Restart the computer
Download and run the Microsoft Fix it tool. What it fixes;
Corrupted registry keys on 64-bit operating systems
Corrupted registry keys that control the update data
Problems that prevent new programs from being installed
Problems that prevent existing programs from being completely uninstalled or updated
Problems that block you from uninstalling a program through the Add or Remove Programs (or Programs and Features) item in Control Panel
Turn off the Real-Time Scanning and Firewalls; The image below is a McAfee example, if you have a different antivirus program and need help disabling Real-Time Scanning and Firewalls let me know.
Image source
Download and run the HP Printer Install Wizard for Windows
The HP Printer Install Wizard for Window was created to help Windows 7, Windows 8, and Windows 8.1 users download and install the latest and most appropriate HP software solution for their HP Printer.
I look forward to hearing back from you.
Please click the Thumbs up icon below to thank me for responding.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
Sunshyn2005 - I work on behalf of HP

Export Options_Automatic Stacking and File Size control

There is a big hang-up in work flow, and I'd assume it's the same for many professional photographers.
It would be great to be able to Export an edited photo (tiff, psd, jpg, RAW), and during the export be able to specify maximum file size (as you can control in Photoshop's Save to Web command), and then also be able to have Lighroom automatically stack the exported image with the original.
This is a big hang-up when you're finished editing multiple sized copies due to different media, and then you have the final web-sized image for your photo gallery. CUrrently, I have to go to Save to Web in Photoshop, and then save it to my desktop. Then I have to manually import that compressed jpg into Lightroom, and put it into the original library or collection.

Yes, the ability to export to a given file size would be awesome for those of us who post many images to the web.
Also, being able to export and automatically add the exported file to my catalogue (Same as when you edit in PS) stacked with the original, would really aid my workflow.

Digital Image and File Size

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