Lightroom :: Understanding Image Sizes And Quality?

Apr 20, 2013

If I use 250ppi and 2000x2500 but then change that to be able to print a larger image (300ppi  3000x4200 - 10x14x print, for example), what exactly happens to the image when I increases pixels and ppi?  Does it improve/degrade the quality?

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Lightroom :: Understanding DNG Edits Done In ACR?

Aug 9, 2013

With the Adobe CC upon us, I'm am questioning staying with Adobe proprietary DNG (proprietary in the fact it has edits embedded that only Adobe products understand) and PSD files long term.
I have never used Lightroom. But am a heavy Photoshop/ACR user.  I have many ACR edited DNG files and multi-layered Photoshop files.I want access to my files in the future (including edits) without having to always have the monthly CC subscription (in the future).
Question:  Can Lightroom  (not a CC product currrently and hopefully not in the future) open & understand the edits (cropping, color balance, lens correction, ...) I've already done to my many DNG files in Adobe Camera Raw?
Even if I use the CC in the near future and eventually not subscribe, I want future access to my DNG and PSD format files, including all the edits).if Adobe guaranteed a free PSD & DNG viewer (understand the layers, edits, ...) and give the ability (for all time) to export to a flattened image with edits applied to TIFF!

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Photoshop :: Document Sizes And JPEG Compression / Quality?

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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Lightroom :: Saving Same Image With Different Cropping For Printing Various Sizes

Apr 6, 2012

I tend to always have a few pictures in rotation that I end up cropping multiple times when I am printing.  Pictures  where today I need to print a 4x6 and tomorrow it's a 5x7 of the same picture, etc.  I am trying to figure out a way to save the file with that cropping.  Ideally there would be a way that if I also modified anything else in the image that would also show up in the other versions.  I know there is Create Virtual Copy, and that could work if I could then figure out how to change the file name so it would show that it was cropped for 5x7 or whatever.

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Lightroom :: Reduced Image Quality After Exporting?

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.


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Lightroom :: 4.1 Low Quality Image In Develop Module

Sep 28, 2012

I have a macbook pro with retina display, in my lightroom 4.1 the images in the library look normal but when i go to develop module the image is blurred and very low quality. In settings the rendering are high quality 2048 1:1
Any way to fix this? Also in my external monitor i notice this thing with minor loss.

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Lightroom :: Preserving Image Quality Outside Of IMac?

Apr 29, 2013

There is a stark difference between how the images processed on my iMac look versus how they are seen on a PC. Image quality diminished significantly when viewed on PC. Is there some sort of setting that I am missing or something in how I export the images from Lightroom 4.4 as jpegs

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GIMP :: How To Maintain High Quality (original Quality) Of Image After Resizing It

Jun 23, 2012

My problem is related with the quality of a image.

My question is how to maintain high quality (original quality) of a image after resizing it?

If i resize it with same ratio like:

2816x2112px to 1600x1200px (4:3)
2816x1584px to 1920x1080px (16:9)

Mainly i use scale image option in Gimp. But now i need to resize many images for my work so i tried David's Batch Processor to resize my images. After using it, i found there is some quality promble with the resized image.

Then i tried, the scale option with, use quality setting from original image and JPEG quality parameter is 95, in gimp but the problem is same. I did it with also with David's batch processor- JPEG quality parameter is 95.

Other thing is that, the original image 2816x2112px (4:3), size- 3.6 MB is displaying in image viewer with 47% and the resized image 1600x1200px (4:3). size- 1.2 MB is displaying in image viewer with 83%, So my questions are: How can i check the quality of a image after resizing it, means the image is exactly same as the original? Or Is David's Batch Processor maintain the original quality of the images after resizing?. I realy need to resize many images for my work.

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Lightroom :: Difference In Image Quality From Develop To Library?

May 2, 2012

I'm a light room noobie (as in I downloaded it 2 days ago).  I'm loving the experience so far, however, I have a quick question, I have edited a few photos I took at a gig, I've developed them, however, when I look at them in Library, there is a loss of sharpness in some, in others where I've reduced noise in Develop, there is still noise when viewed in Library. 

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Lightroom :: 5.2 - Slideshow Image Quality / Color Rendering

Nov 6, 2013

I´m quite frustrated after discovering that some of my images look quite poor displayed by the slideshow module. My situation ist as follows:

LR 5.2 running on Mac OS X 10.8.5, 1:1 previews are rendered, preview quality is set to high, and I´m using a sample image showing a dark cloudy sky with some fine gradients; my slideshow preset doesn´t use any borders as I read this often causes quality issues.
When I´m in the Develop module, there is no problem at all, even in fullscreen display mode on my 1920x1200 display the gradients are perfectly rendered.

In Library module, when displaying fullscreen, quality is okay, but I can see some slight difference compared to the Develop module - which I understand after reading that in Develop the output is based on the actual raw data, and in all the other modules on rendered previews.

Now, when in Slideshow module, the image quality is significantly lower than in Library and I see some quite obvious banding in the gradients. I don´t have problems with blocking artifacts but the banding/posterization is considerably worse compared to a JPEG export with a quality setting of, for example, 75.
I can´t imagine LR´s slideshow tool would be working with a lower color depth than the 8 bit as in standard JPEGs, right? Did I miss any of LR´s parameters that influence the image quality of Lightroom slideshows or of the previews used therefore? Otherwise do you have some other explanations or hints for me in order to get this fixed? We do everything to capture our images in the best possible quality so we should also be able to present them properly after all...

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Photoshop :: Understanding DPI Vs Resolution

May 7, 2009

I am trying to have an image of mine printed professionally. However the print house I have sent my image to has asked that my image be submited at 300 DPI. My image is already 7200 x 4055 pixles with a resolution of 300. My question is what is the major difference between resolution and DPI and how can I go about correcting the dimensions of my image?

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Photoshop :: Beginners Guide :: Understanding Resolution

Nov 10, 2004


Resolution is responsible for much confusion to beginners in Photoshop. I am providing this guide in hopes to clearing the smoke and answer any questions you may have.


Before we can get into the 2 most common resolution-related questions, ("How come my images come out smaller when I print them?" and "How come my images come out pixelated when I print them?"), we need to get a grasp of what SCREEN RESOLUTION is.

Your monitor is displaying a certain resolution that you may have commonly heard. Popular ones include "640x480", "1024x768" and "1280x1024". Let's take the latter; this means your monitor is showing 1280 pixels worth of information WIDE by 1024 pixels worth of information HIGH.


Most web-based images are created with an IMAGE RESOLUTION of 72ppi (Pixels Per Inch). In order to determine the DIMENSION of an image, you merely take it's size and multiply it's resolution. Let's take a 4" x 6" image in Photoshop. To determine it's DIMENSIONS, we do the following:

4" x 72 pixels per inch (ppi) = (4x72) = 288 pixels wide
6" x 72 pixels per inch (ppi) = (6x72) = 432 pixels high
Your 4"x6" @ 72ppi image has a DIMENSION of 288x432 pixels.


Place that 288x432 px (pixel) image on your monitor screen, which has an OUTPUT RESOLUTION of 1280x1024. The image takes up 288 of the 1280 pixels wide and 432 of the 1024 pixels high. If you change your monitor's OUTPUT RESOLUTION to 640x480, that SAME IMAGE now takes up 288/640 pixels wide and 432 of 480 pixels high. This makes the image LOOK bigger, however it has not changed size or dimensions at all. You've merely changed the amount of information per inch that you are viewing on screen.


When using Photoshop, make sure your VIEW RATIO is at 1:1 (100% ZOOM FACTOR) A common misbelief is that when you zoom in or out of an image, you are changing it's size/dimension/resolution. This is not true. Understand that you are merely changing how closely you are examining the same image.


It's simple math. Your 4"x6" @ 72ppi image is being printed on a printer that outputs at 300 or 600dpi (dots per inch) [side note: Dictate onscreen images as ppi when you refer to their resolution and dictate printed images as dpi when you refer to their resolution]. If we do some math, you'll see why your images come out so small.

4" x 72ppi = 288 pixels wide
6" x 72ppi = 432 pixels high
Print this in a printer that uses 300dpi and we get an image that is:

288 pixels wide / 300 dots per inch* = 0.96" wide
432 pixels wide / 300 dots per inch* = 1.44" high
*Dots/Pixels are interchangable, ie, 1 dpi = 1 ppi.

So that same image you thought would print at 4" x 6", printed at 0.96" x 1.44".


For the same reasons it comes out small. The only difference is, that the computer scaled the image to the dimension of the original. (Tried to scale your 0.96" x 1.44" image to the dimension of 4" x 6") This is like trying to get a gallon of water out of a shot glass. The end result of this scaling is a pixelated/distorted image.


Merely known what the end dimension you want the image to be, and the OUTPUT RESOLUTION of the printer you're using.

1. I know I want an image to be 8.5" x 11"
2. I know my printer prints at 600dpi.

Do the math:

I need a document that is:

8.5 x 600 = 5100 pixels
11 x 600 = 6600 pixels
5100x6600 pixels in Photoshop.

This image will print at your desired dimension on that printer without distortion/pixelation or being shrunk.

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Xara :: Understanding Pasteboard And Page Backgrounds

Jun 5, 2011

I have happily migrated to Xara Designer Pro 7 for our company web design. But I am coming from a program that handled background images and object properties differently,URL...

In Net objects, to do this, you set a background colour in the sitestyle menu, set the background tile using the body tag in the text styles or CSS menus, and place the decorative paragraph graphics as backgrounds in individual text boxes or layout regions.

I think layered designs like this would probably be achieved by a combination of features and tweaks, but cannot work out how. I can get a background colour on the pasteboard as well as a design - using a Tweak. But doing it this way means that the design does not align properly - at least not so far as I have been able to achieve.

Would love to know the views of the experts here, particular those who also use Net objects Fusion.

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AutoCAD Inventor :: Understanding Check In / Out Paradigm?

Feb 20, 2012

how the check in/check out process works, and how that's related to the information in the project files (if it is)?  I'm thiking of basic questions, such as how does Inventor know when a file is checked out, and where is that information recorded.

For reference, I'm using Inventor 2010 in a non-vault environment, with single-user projects, on a small corporate network.  I've been using 3D CAD since late in the last millenium, but I've only been using Inventor for one year.  My previous CAD experience was with Solid Designer, Solid Edge, and SolidWorks.

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Photoshop :: Resizing Various Image Sizes All To

Jan 5, 2009

Is there a way to make an Action for batch processing to take a folder of various file sizes of photos and make them all retain there proportions but end up the same final size?

I am wanting to put on web quite a few photos but do not want to down size each one at a time. If I want them all to be about 200kb, how can I do that where a 5mb pic or a 500kb pic could all be processed with the same action to end up the same size?

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Photoshop :: Select And Save Parts Of Image With Different Image Quality

May 12, 2009

A while back I took a Photoshop class and remember a lesson on where you could select a region of an image and save it for the web with a high quality and select another region of the same image and save it for the web with a low quality, so that the focal point was saved with a high quality and the background was saved with a low quality. I have no idea where my notes are from this class and can not remember at all how to do this. Can anyone direct me to a tutorial about this?

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Photoshop :: Reducing Multiple Image Sizes In One Go

Oct 12, 2004

I have a whole directory of images which I took with my digital camera. I want to post them on my site, however I would like to reduce their size to fit the html pages. I know how to perform this task for individual photos, but since my directory consists of many images, this task will be very time consuming.

I was wondering if there is any way to have photoshop make the same image
size reduction on all images, by running some sort of script or any other way.
If there is such a way, does photoshop also save the new smaller images?

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Illustrator :: Why Is There A Limit To PNG Export Image Sizes

Jun 26, 2012

This came to my attention around the CS4 era, but I've recently noticed still remains with CS6 - but just why is there a limit as to what image sizes we can export PNG files at [AKA around the 8000x8000 area at 400dpi for me]?
Surely as long as we have the computing power [and RAM] than we should be able to export beyond the 10000/400dpi pixels range [or does it depend on the computer]?

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GIMP :: Reduce Image Quality Of JPEG Image

Mar 12, 2012

When you reduce the image quality of a jpeg image , How exactly is it reducing the quality? is it applying file compression , reducing bit depth or is it reducing the sampling rate of the image? or anything close to the above....

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Paint.NET :: Resample Image - Low To High Quality Image?

Dec 8, 2012

is it posible to get high quality image from low reolution image 100x100 ? i try using 2 software. and adobe photoshop cs6. here is the original image (115x140 px)


and this is my result using (1000x1218 px) [URL] (cause of bwk i did not post it here. klik the minus link)
and this is result with photoshop [URL]
share with us if you know how to do better resample with high quality pixel.

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Photoshop :: Save As Action / Resize One Image To 4 Different Sizes

Aug 10, 2012

I am trying to resize one image to 4 different sizes. So far I have an action created to do all of this, with only one minor problem. Whenever it saves the images, they are always saved as the wrong file name. I was wondering if there would be a way to keep the original file name, but then add a suffix to it- all within the action.
If it's not possible to automatically add a suffix, how do I keep the original file name when it's saving within the action?
I found an older post (URL...) that was very similar to what I'm trying to accomplish, but the question was never fully resolved.

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Paint.NET :: How To Resize Image To Small Sizes In Pixels (25 - 35kb)

Feb 17, 2011

I developing a new website for a client....the challenge is that they have a load of images and photos that they want on the website...

Apart from causing the webpages to load slowly, Google also penalises these webpages.....

How to resize images to small sizes in pixels (25-35kb) but the image must still be fairly large i.e 600x600 and it must look good?????

Are there other programs available that can do this? Preferably free!

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GIMP :: Large Font Sizes On Base Image Of 2000x3000 Pixels

Mar 27, 2012

I've been experimenting with large font sizes on a base image of 2000x3000 pixels. I've been using a basic white type face on a dark gray background and adjusting the lightness and contrast of the white color to different levels. Also, I created the type as as png first and then brought into Gimp. When the image is at full size, the type looks fine, but when I shrink the image down, say a quarter of the size, the edges of the fonts get very jagged and look like they're breaking up.

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Lightroom :: 4.1 - Export Sizes Not Consistent

Aug 29, 2012

Lightroom 4.1 / Mountain Lion
Settings for Image Sizing:
Resize to fit - Long Edge - 960 pixels - 300ppi - Don´t enlarge
Portrait results: Width_640 x Height_960Landscape results: Width_1440 x Height_960
Lowering ppi to 240 results in the dimensions coming out right
A fellow photographer tested the same on Windows 7 and gets expected results.
I saw what appears to be the same issue in a thread from april 2011, but that thread died without a solution.
Is this a bug in the Mac version? Does it have to do with the ppi and is LR4.1 actually doing it right?

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Lightroom :: 4 Custom Book Sizes?

Aug 13, 2012

I've read several times that the only way to get a custom book size in the book module is to edit/create one in Illustrator or Scribus. In this interview with Kevin Tieskoetter he mentions that he would be documenting this process, so I imagine it's allready doable.
"All of the templates we ship with Lightroom are made using Illustrator, and I'll be documenting the process for creating those. We've also successfully made templates using InDesign and the freeware tool called Scribus, so if you need templates in different sizes, you'll have a range of options."

I want to try this. But where do I find the files that I'm to edit? Where do they reside on my computer? I'm using a Mac OSX 10.6.8 and can't seems to find anything that resembles tenplate files.

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Lightroom :: File Sizes Different When Uploading

Sep 12, 2013

I have exported photos to my harddrive as jpegs that are less than 1mb but when I try to upload them for an assignment on the school website they are 25 mb??

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Lightroom :: Setting LR To Print To Different Sizes?

Jul 24, 2013

I have a picture package I want to create. This needs to be the same image on different sized outputs. But you can only create a print package with one custom file size. Is there a way of setting LR to print to different sizes?
I know I can select page size as master size, and print with different sized cells on each page, but I actually want the page size to be different.
For example
page 1 = 8x10 page size, with 8x10 cell
page 2 = 8x12 page size with 8x12 cell
page 3 = 8x6 page size with 8x6 cell
page 4 = 8x6 page size with 2 of 4x6 cells.
I single image, printed on 4 different size pages...
Could you modify the LRtemplate file? Its the global settings bit that concerns me, I dont want a global setting of
_globalSettings = {customFileHeight = 576,customFileWidth = 432,I could do with these file dimensions different for each print.
Can it be done?? has it been done??
even if itspeople pointing me towards different software.
PS - I'm using LR4 but LR5 doesnt have this option either.

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Lightroom :: Exporting To Print At Various Sizes

Dec 3, 2011

I am new to Lightroom. I give my clients their pictures on a cd/DVD to take to their prefferd printer and make prints in whatever size they like. However, I have been readings some forums and am confused about how to export my pictures so that they can be printed at any size but without having heads or feet cut off during enlargements,etc. basically, how should I export my pictures do that they can be printed at any size ( 4x6 or 8x10 pr even larger)without any loss of image. I currently have it set at 300 dpi and no sharpening because I do my sharpening in Lightroom.

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Lightroom :: V4 - Presets And File Sizes?

Jul 2, 2012

When i apply a preset to a photo, then export it ... the file i end up with is significanatly smaller than my original file ?  These same presets resulted in as large / or in most cases larger files sizes in previous versions of lightroom ...

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Lightroom :: Why Still There Are No Personalized Album Sizes In 5

Jun 19, 2013

Why still there are no personalized album sizes in LR5?
Professional wedding photographers do not use blurb books or albums. We NEED BIGGER ALBUM SIZES for printing in other companies than blurb!
Since LR3 we are asking this feature. It's better to do everything in LR than have to jump to other programs to just do an album that we can do in LR. Besides that, everything stays in the same catalog for future printings.

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Lightroom :: File Sizes Smaller After Import?

Apr 22, 2012

I am working on bringing files into Lightroom 4, most DNG files from a Canon 5D and DNG and TIFF files from a Nikon scanner.  The problem I'm having is that after importing the files into the Folder in which they will all be for the catalogue, they are significantly smaller.  For instance, a DNG file from a 6x9 film scan is 600MB in the original folder, then is 420MB in the new folder after being renamed and imported into Lightoom.  Similarly, a 20MB DNG file from my Canon 5D is 8MB after importantion.  Also, the backup of the original that is made upon importantion, remains at its larger size on my external drive.  I do not believe that I have anything set in Lightroom to do this, the only setting I've touched in the import process are renaming the file, placing a backup, and adding tags.  I am not doing anything in the development dialogue box.  Is there a reason that these files are so much smaller? I'm worried because 30% decline in the case of scans is a lot of data, as if the 70% decline in my Canon 5D file.

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