GIMP :: Reducing Large Geo Photographs In Size?
Dec 13, 2011
I have to reduce 4 very large TIF files [each one is about 250MB!] to a more manageable size to stitch together and apply as a watermark. They seem to have been taken at about 1.5km above the ground and are very high resolution at 8000x8000.
I still want to retain reasonable resolution at about 250m above the ground so my question is what is the best way to reduce each down?
Would I resizing them in actual size as well as reducing dpi?
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Aug 7, 2012
I've just reduced the size of a canvas from 300x300 to 200x200 but when I merge the layers I'm left with a dotted line showing the original size.
reduced canvas size.tiff (128.61K)
Number of downloads: 3
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Jan 9, 2012
I have several pictures that are over 1 mb in size. I need to get them down to under 100 kb for my wall charts to print.How to do?
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May 2, 2012
I've recently started trying to learn how to use GIMP through making signatures, and for the past 2 weeks or so, it has been going fine.
Today, when attempting to resize the large image down to signature size, even though the preview shows a good quality render, after it scales the image loses all quality. Whats more, thinking it might just be a poor image, I tried to resize previously succesful images and got the same bad result.
Here are some screenshots showing pre / post scale [URL]...
Preview there is fine, and shows a good quality render (exactly what I'm looking for)
[URL]...
This is the result
I understand that the aspect box is unticked, but even with that selected the image became distorted
I have also tried cubic / Sinc, both resulting in blurry picture.
The most frustrating thing is that the preview shows that the picture can be made that small and retain it's quality, and up until now this has not been an issue.
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Apr 10, 2009
I have a slew of psd files that were saved with maximum file compatability turned which left them incredibly bloated. Is there a trick to saving them which gets rid of the overhead left by maximum file compatability short of rebuilding every file from scratch? I'm guessing 20% savings on size would not only save space but speed things up too.
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Aug 6, 2010
When I try to set a large page size (13X19) in the print screen from GIMP, it will not go beyond 8 X 11. What do I have to do to set up to print larger. When I do page set up, it always reverts to defaults.
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Mar 23, 2013
I have used Gimp a bit, and before that PS quite a bit. I have never had to use the size constraints for sizing a file to fit a large format printer. I will be getting one any day so I would like to be prepared as much as possible. When I was at another shop, the owner used one of the cropping functions to set the finish print size and then she could move the box around to locate the best print area and remainder to be cropped. She was using PS. I would assume I could do it also in Gimp, but have not found a way to do it yet. What am I missing. Even if the printer software will do it on the printer, I would like to be able to show my customer on a PC monitor what they might expect.
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Mar 20, 2014
I have created a file in illustrator 23in x 67in which is 137mb how can I reduce this as small as possible to be able to print it, as when I save it as a pdf it reduces to 27mb which is still to large.
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Mar 23, 2014
How do i reduce oversized art scanned by a large format scanner so it can be printed by a standard office size printer?
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Apr 15, 2008
is there a function in photoshop cs3 that will reduce the file size of a photo without affecting the physical size of it, i know macromedia fireworks can but thats no help to me unfortunately...
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Jun 13, 2010
I have some large images that I would like to print at full size, which will involve tiling across multiple sheets of paper. I can't seem to find a way to setup tiling at the Print dialog or through Gutenprint.
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Nov 23, 2006
I have a cybershot and have it set to 1280 x 960...Fine. The pictures look great but sometimes when I upload to walmart or shutterfly them become pixelated. Or when I use irfanview (PC only program) to resize to something smaller and pixelates them as well.
Should I change the camera settings, if so, to what? Should I use PS to resize them?
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May 14, 2013
how should I size a photograph to attach it in sensible proportions to an e-mail when using Elements 11? In Elements 9 I set the dpi at 72 and then the longest length at 1024mm. he shortest length was set automatically by the programme. Elements 11 doesn't allow me to do this. I've tried starting off with 72 dpi but as soon as I enter the longest length the dpi changes. This did not happen with E9 and in E9 the size of the attachment was measured in KB's but with E11 I finish up with quite large MB sizes.
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Oct 19, 2013
I have these PDF catalogs which are about 20 - 50MB each. Some of my customers are not comfortable browsing online so a digital catalog (here) works better for them... The same people generally have bad internet connections so I need to re size these PDF's so they can be downloaded rather quickly.
Starting with a 20MB PDF, I open all slides within Photoshop. I batch process the images from 300dpi to 96dpi , and shrink the size from 24 Inches across to 15... All the images are saved in a new folder, opened back in Photoshop and a new PDF is created. Considering both size and dpi has been clipped by a fairly large amount, you would think that the new PDF would be smaller... But its not, the 20MB version ends up around 60MB afterward.
I don't feel like purchasing Acrobat Pro because I know this should work within Photoshop.
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Sep 22, 2012
I have designed a billboard and used various photos. Due to changes in the positions of the layers, I ended up with a canvas bigger than the photo. So I need to remove the extra canvas. How do I remove the extra canvas?
I can use the marque tool to copy/cut and paste the photo unto a new file, and hence get rid of the extra canvas. If this is the way forward, is there a precise way to get the marquee tool to the edges of the photo? Is there a function to snap the marquee to the edge of the photo?
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Nov 18, 2013
I have 900 photos/ scans that are all large in size. I know want to make them suitable for a web site ie 72/91dpi and around 1024*768 px in size . thought the save for web choice via an action was the way to go ie create the action and then run as a batch.
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Jul 20, 2009
I have been told that you can reduce the number of pixels in a picture, but keep the size of it.I am unsure about this, so I thought I would ask the experts as it were.I do know the JPEG image compression when saving, but is there any way you can specify the number of pixels?
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Mar 26, 2007
I have a Sony camera and have it set to take big pictures with high reso.
In PS, can I reduce the size 3 MB to something a lot smaller but still keep ok quality? I go to Image Size but that just makes the pic smaller (duh) I want to change the actual file size.
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Dec 24, 2008
wanted to put all my holiday photos on a picture-sharing site (Photobucket), but it seemed they were too big and it took forever. It was suggested that I reduce their size on Adobe Photoshop and I have downloaded it (Starter Edition 3.2). However, I can't seem to find a facility to do this. What I would really like to do is reduce all of the file sizes at once. Is this possible? Otherwise I will reduce them one by one, but don't know how to do this either.
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Jan 10, 2009
I read somewhere that in Photoshop you should reduce images in steps, but never in one big step. For example, if you had an original 3200 pixels wide, you should first reduce it to 3100 pixels wide, then 3000, then 2900, and so on, down to about 2000; then, if your target is 800 pixels, you may increase the interval.
Does this rule of thumb still hold true in CS4? I've tried one-step reductions, and these tired old eyes could not tell the difference ...
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Apr 8, 2008
Working in Adobe Photoshop CS. I have a tif file that is 36"x36" at 150dpi.
Flattened image; Grayscale mode. File size is 28.499MB. Is there any way
to reduce the file size other than change it to a jpeg? I need to email it
somewhere and they can't accept files over 20MB.
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May 1, 2013
I have made this artwork in illustrator (included an image of it below). it is for newspaper print. When i export it to Illustator PDF the size is MASSIVE 40mb! I sent this to them via a link hoping to get away with it but they replied & said please send as 3mb as the file it to big! What am i going to do now? I have flatterened transparency & rasterized everything in Illy but it only makes it larger.
the size of the overall artwork is
W:262mm
H:190mm
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Jun 30, 2011
I use a bog standard canon A480 for all of my photographs, it's a good little camera and does what i want it to do. My question is this, it is set to give a image of 3648x2736 i want to reprint some photographs of the kids on the beach, what sizes would you recommend for output sizes for printing etc.
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Jan 17, 2013
I created a 1318x358 PNG (300DPI, Anti-Aliasing - Type Optimized) from Illustrator. Now I reduced the image in Photoshop from 1318 to 800 pixels, and it is creating some edge blurring. Look at the image below.
How can I take away that blurring effect when reducing the size? Even if I save it as PNG-24, with highest quality settings, it still does that effect.
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Jan 13, 2013
Hotkey "," for reducing tool size is not working. Nothing happens when I press the key.Settings for text program East Asian?? I am in Western Europe (Denmark)...When I want to view a photo at 100% zoom it takes up more screen space than it should. A photo of 8.5cm width measures at 100% 26.5cm on the screen.
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Feb 13, 2012
I'm using C5 Extended and have been using PS for years and suddenly I'm seeing something I haven't encountered before. My font sizes are being reduced "to the closest integer" which goes to 624.14 pt. My image is only 1000px x 150px so I'm not sure where the measurement discrepancy is happening.
I noticed it first when I made a copy of a box of text and then tried to drag the text copy.
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Dec 7, 2010
I made a 8GB video in PAL sometime ago. Some of my relatives in Canada cannot view it. As I do not have the original footage, I imported the DVD into X3 and tried to create a DVD in NTSC format. The final size came to 9.3 GB and it appears X3 will not burn or create VIDEO_TS folders if the size is more than 9GB. I was hoping I could use DVDShrink to reduce the file size to fit a 8GB disc once the VIDEO_TS folder is created on the computer.
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Dec 28, 2012
I have a 3D model that consists of a large number of "small" objects that i created earlier in separate files. The problem is that now my model is 50Mb and I am having trouble working with it. Is there a way of reducing size, or is there any other solution that would not change the geometry of my model?
Working with Intel Quad Core, 6Gb of ram and ATI Radeon HD3800.
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Jan 4, 2013
i have produced a drawing and have copped and pasted quite a few photograhs on it showing details etc. however bnow my drawing has a very large file size. i have purged drawing, it is the photographs
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Nov 23, 2013
The picture becomes smaller, does not retain the original size (ex what was cropped off). This did not happen before. Did I click something by mistake? How can I restore cropping such that the new picture is the same size as before?
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Dec 13, 2012
I had a question on reducing the image size after editing in Photoshop.
After doing my changes in Lightroom, I typically make edits in Photoshop and then do some final touchups back in Lightroom. The RAW file from my camera is approximately 24 MB. After making my edits in PS, the TIFF file it produces (with all layers flattened) is in the 60 MB range.
My question is, if before sending in back to LR, I change the image size in PS say to 12 MB or so, am I basically creating a lossy jpg file? Meaning -- by reducing that TIFF file size down to 12 MB am I throwing out important information such that when I go back to LR I am losing information and won't have as much control as the 60MB TIFF file?
keep upwards of 80MB per image (due to the RAW + edited file). I don't want to lose imporant information so I will if I have to, but would prefer not.
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