Photoshop :: Optimize JPG Image Size Reduction By Reduced Compression Quality And Pixels
Feb 28, 2013
I have many images of slides scanned at high res (4800 DPI, maximum pixels 5214x3592). Although I will be saving these as loss less TIFs, I also wish to make JPGs from them that I wish to be just less than 5 MB in file size. Aside from cropping, I know I can achieve such a reduction of JPG file size by a combination of saving to lower quality JPG compression or reducing image size. My question is, what is theoretically or practically better, achieving this mostly by reducing image total pixels or by reducing JPG compression quality.
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Jul 7, 2008
I don't know how to explain it properly, but recently if I download a picture and open it in Photoshop is appears rough and edgy. For example, I just recently downloaded this.
However, when I attempt to open it using Photoshop is appears like this. (I couldn't open the screenie in Photoshop as the quality was reduced even further)
I just started using Photoshop recently, but when I first started using Photoshop it didn't do this. It happens, I now know, with any image. Even those that were never downloaded such as the screenie I provided have a drastic decrease.
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Aug 20, 2013
I accidentally exported original photos in low quality (reduced size from 12MB to 600KB), as I needed to quickly (herein lays my mistake) upload them to a proofing site which requires me to reduce the quality of the images significantly. I NEVER usually do anything without backing things up, or before making a copy etc. This time however, I was in a BIG rush to get these to a client and I not only exported the original files (even though I exported to a new folder, somehow, the originals got reduced as well without me noticing), but I also deleted them from my memory card (I tried card recovery software and no luck). What I'm left with now is a folder full of low quality, useless images and no (known) way of restoring them to the original high quality (12MB) state. Here are some other details:
Program: Lightroom 2
Computer: MacBook Pro
Camera: Nikon D7100
(I only post this as I used my camera to delete the images off the memory cards...not sure if there is a way to recover via camera?)
Images no longer show in preview (yes, I deleted them from there too!)I did not back-up I tried scanning my hard-drive, memory card and external drive with recovery software (no luck)the images were on 2 memory cards and, as mentioned, I deleted them using my camera (when I ran the recovery software, only images that I originally deleted via my computer came up - which were the "did not make the cut" photos from the shoot that I deleted in Bridge - the rest of the photos, which are the ones I need, are not coming up in the scan)These images were to be used as posters, so high quality is crucial. There is nothing in my trash can eitherI tried using a preview extraction plug-in, but as there are no previews (duh Sanja), the plug in proved useless I think that's all the info I can provide (maybe it's too much info as is)...
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Dec 4, 2012
When I use the "attach" command in order to attach an external image lets say in TIFF format which is around 8.7mb the image quality in Autocad is greatly reduced. Is there anything I can do for that?
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Mar 12, 2014
When I edit my photos in Lightroom (4.4 at the moment) they look great. I am looking for extreme sharpness and clarity and I am able to achieve that. Though, once its exported the image quality is reduced. Why? how to set my export settings to the max.
[URL]
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Jul 2, 2013
I tried to save a few pages as one PDF.But it was an epic fail. However, i must have cganged a vital setting, for now when i save PSD files to PDF, the image reduces massively in size, but the file size increases a lot. What have I done and how can i change it back?
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May 9, 2005
to reduce the image size from a digital camera to something acceptable for posting on the web without destroying the image quality?
My camera gives me pics that are 1200 x 1600 pixels at 72 ppi. way to get it down to the 300 or 400 range?
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Jul 3, 2012
what's the best way to reduce an image's size and still keep it crisp?
If resorted to creating images ten times the target size and then reducing them later on to the target size, as i can control the FX much MUCH easier.
but the only issue is when i reduce their size, they don't look as good? i know it is possible somehow to keep the quality, but i'm not sure how.
Trying to reduce an image of 6000x1200 to a tenth of it's size for a Signature.
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May 24, 2013
JUST GETTING INTO USING PHOTOSHOP AND WOULD LIKE SOME GUIDANCE IF POSSIBLE WITH THIS. I'VE UPLOADED SOME IMAGES FROM MY CAMERA AND ARE TOO LARGE TO EMAIL. THEY AVERAGE APPROX. 3.6 MB AND HAVE TO BE UNDER 500K.
HOW THRU PHOTOSHOP CAN I REDUCE THE FILE SIZE TO MAKE THEM MORE MANAGEABLE?
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Jan 6, 2006
I'm editing digi photos about 6mb in size and dragging/copying them into another file (template) which is much smaller. When the photo appers in the new file it's huge. So I use the free transform tool to get the image down to the size and position I want and all is good.
I lose the focus of my subject (close up of Rolex-Omega watch's). Now the original shot is perfect and most of the time I dont have a problem in that the focus remains perfect after reducing the image down. Have I clicked on something that I shouldn't? I cannot work it out, the photo's are all in a batch, the first 4 were perfect and the 5th, just not having it, even after re-taking the picture.
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Aug 18, 2011
I'm trying to print a landscape image but the image is reduced when printed. I open a new A4 sized template and make my image but when it comes time to print the image is smaller on the page than A4. Is there an easy solution to this? I have messed around with orientation both in GIMP and my printer settings, I have used the printers' "fit to page" setting and tried everything I can think of.
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Feb 7, 2009
I'm trying to make an avatar for the forums here, but I can't seem to make it small enough (file size) for it to be usable.
Is there some way I can compress this down to 8kb without losing quality?
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Jun 13, 2012
I'm using Photoshop CS6 (64-bit) and ACR 7.1, all patched to the latest version today (13 June), and running Windows 7 64-bit. When I reduce the image size of an originally smart object using bicubic, the edges will be somewhat transparent, creating an ugly border around the image.
Step 1: Open a raw file. ACR 7.1 will pop up. The raw file is a CR2 file produced by Canon EOS 7D. Workflow option: sRGB, 16 bit, 3888x2592.
Step 2: Press shift+click the Open button to open it as smart object.
Step 3. Right click the layer and choose rasterize layer. When you zoom the image, there is nothing wrong in the edges.
Step 4: Resize the image (CTRL+ALT+I) for example to 300x200 using Bicubic resampling (bicubic auto, whatever).
The edges (outermost 1 pixel) will be transparent!
This doesn't happen:
* in photoshop cs5
* if I use bilinear or other resampling
* if I import the file from ACR to PS as a normal bitmap (not using shift+click)
My workflow involves opening files from Camera Raw as smart object,
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May 18, 2012
I have just moved up to CS6 after many years of using Elements - so am coping fairly well with my new "toy" !
One thing has me a bit baffled:
I store my photographs in two formats: the original in .nef and the processed final version in .psd.
If I select "full screen preview" of a .psd file, in Bridge, it comes up full screen, but not at what I would consider to be best quality.
If I export a copy at 800 or 1280 quality in .jpg and view it in Windows Photo Viewer (or open the file in Photoshop itself) there is a distinct difference in picture quality compared to Bridge. The Bridge copy seems to have slightly muted colours and the sharpness is markedly less. I have two monitors so can compare them side-by-side, and have transposed them on the monitors with no difference.
In Elements, I can have the organiser on one monitor, if I highlight a thumbnail and hit F11 I get a full screen and full quality view on the other monitor.
Is this a "design feature" of Bridge/CS6 ? or have I missed something when setting CS6 up in the first place ?
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Dec 30, 2012
I've been using GIMP to make GIFs and they were okay until one day I realized the GIF quality was terribly reduced after I exported it. But everything seemed fine when I was in the process of making it (I never use any color transformation I normally just crop and resize image and that's it) when I used playback the GIF seemed okay but once after exported, the quality was very terrible. I couldn't understand why.
Every single GIF I make ever since faces the same problem. The animation playback and everything seem fine. Just I can never export the same quality GIF like what I see in the playback, every time it ends up with a low quality one. I re-install GIMP but that doesn't work at all. I download the latest version but that doesn't change anything either.
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Oct 21, 2007
I am trying to save an original vector psd to a jpg, however it is coming out with compression on it. I am saving it as maximum quaility level 12, but it still appears. Any ideas what else is causing this?
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Jun 19, 2013
When I upload photos to[URL]... They will either be a very large file size and delay the download of the page or they will come out grainy. I have tryed adjusting them in Photoshop, but I will either loose quality or they will not be compressed enough. It there an easier tool that I am missing?
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Feb 21, 2011
i have problems with images saved as jpgs in best quality. the same image saved as png is in much better quality, what is no surprise. but when i save the png in photoshop as jpg the no loss of quality.
1. jpg saved in max
2. png saved in max
3. png saved as jpg in photoshop
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i7 950, 12gb, gtx 460, 7x64
i7 920, 12gb, gtx 285, xp64
max/maxdesign 3.0 - 2012
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Sep 20, 2012
In relation to Photoshop, in the status bar at the bottom it displays what it calls “document sizes”. How to clarify can this be used to determin the quality of a jpeg file ?
For example if I open up a jpeg with no compression (file size on disk is 4.57mb) it displays Doc:34.5M/34.5M however if I open the same file with compression set at 5 (file size on disk is 748kb) and ‘document size’ doesn’t change. How does the document size relate to jpeg compression etc...?
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Nov 18, 2012
I just tried to resize an image and set the new size with pixels. It doesn't give me the option.
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Nov 27, 2012
I have ProX3 and am trying to create .mov PhotoJPEG video clips. I'm trying to decrease the compression quality since I'm uploading these clips to stock video footage websites. However, when I go to export the video, under the Compression screen the Quality area is grayed out at 100% and won't let me move the tab over to decrease it. How to change it?
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Oct 2, 2013
In PSE 12 what is the maximum image size, both in pixels (length x width) and file size (MB)?When will the manual be available online?
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Mar 22, 2012
I would like to enlarge an image, but when I do this it loses quality.
This is how I have done it: image > image size > check "resample image" > select "bicubic smoother" > set my dimensions.
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Feb 18, 2009
I'm using Photoshop CS3 and I have a quick query regarding the difference in image quality between resizing an image using 'Image Size' compared to 'Free Transform'.
I'm laying out several individual photographs on to a page (with some precision) and therefore using the transform function to scale the image to the right size is certainly the quickest and easiest option.
However, I have always been keen to ensure maximum image quality and I don't know if this will degrade the image more than resizing the image using 'image size' before pasting it (obviously with a lot more effort involved).
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Apr 24, 2009
The specific task I need photoshop for is: taking small low-quality images and making them big and sharp
For instance, I'd like to be able to cut out the squirrel from this image and then enlarge it to a desktop wallpaper size.
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Apr 6, 2009
With same PSD file, I hid the layer visibilites and saved another copy, and I noticed that the file size was reduced dramatically.
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Apr 8, 2012
I have a few images that are essentially line drawings (B&W) that I want to make larger for presentation (i.e., click for larger size) on our new Website. The current size is not large enough.
If I increase pixel sizes, the quality is terrible. For example, see:
[URL]....on our 'test Website'. [Please note Website is work-in-progress.]
Settings *jpg: Width - 270; Height - 138; Scale styles - Y; Constrain proportions - Y; Resample image - Bicubic
If I increase *jpg to Width - 450; Height - 230, I get UGLY.
When I Save for Web as *gif, I change Width - 450; Height - 230, it still appears fuzzy, although not as much.
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Jun 16, 2013
I did a Photo shoot for some dancers who need some images for print. How do i save these images so that they are A, print ready pdf's. and B, Email able.
The goal is to get these images onto the page of a paper/magazine. Not full size but i guess they will be a put in a box.
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Aug 18, 2013
I've created a resume in Photoshop CS5 for OS X - I know, I should've used InDesign but I'm more comfortable working in Photoshop.
The PSD is currently 2550x3300 px (8.5x11 in) at 300 dpi. I'd like to save the resume as a PDF flie so I can submit it online. I have no intentions of printing this particular document. Most websites will only accept a file size of under 1MB. What are the ideal settings for saving a PDF in the smallest file size without sacrificing on image quality? I should also note that I do not have Acrobat Pro.
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Aug 30, 2012
PSE 9 on Win 7.
I want to take a bunch of my pictures to my iPad via iTunes. iTunes will accept a PSE Album as a source. But not a Smart Album. I also want to reduce the size of the jpg's in the album. Sort of what I can do with Export. Is there some way I can do this?
Ultimately I'd like to get all my new photos to flow through this downsizing, into the album and be delivered pretty automatically.
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Oct 4, 2013
I need to have a pic finish at (width-3072 and height- 2048 pixels). When I click on file>new I put in those dimensions, but when I am done with pic and I export it, the picture shrinks to very small. The only way around this is to maximize the image in Gimp to 100% and use my snipping tool to outline the image, then "save as". This will save it large, but not the size I need.
My brothers and I took some pics and I added a couple things in one of mine, to try to fake them out. If the size of THAT image is way different than the rest, the fake out will not work. I normally use Faststone to re-size my images but it will not re-size my Gimp images.
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