Questions tagged [jpg]
Questions about the JPEG file format. JPEG is a commonly used method of lossy compression for digital photography.
174
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How to crop a JPG without recompressing?
Is it possible to crop a JPG image without losing quality/recompressing the remaining part of the image?
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9
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Facebook: Ways to preserve image quality of uploaded images?
After uploading an image, Facebook converts it to a new image. Their conversion process introduces artifacts and mottling to the magenta-ish parts of the image.
Original image:
Facebook's ...
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10
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JPEG with transparent background
My client wants me to supply images for web as JPEG with transparent background. Is this possible?
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3
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Why do people use JPG images?
I see JPG images everywhere. But why?
PNG files have opacity, while JPGs do not.
I've tried exporting some images to PNG and JPG to compare size, and they both either match up or the PNG is smaller(...
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7
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Can't save PSD as JPEG
I have a PSD file with one layer. When I try to save as JPEG it doesn't show JPEG and other formats as an option. It only displays a limited set of formats (5) including Photoshop.
When I manually ...
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3
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CMYK JPEGs extracted from PDF appear inverted
I am having to deal with CMYK JPEGs extracted from a PDF source. The PDFs were created with Photoshop.
The problem is that Photoshop stores JPEG CMYK data in PDF/EPS using "normal" values, whereas in ...
user2677
9
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4
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How to determine what quality a JPG was saved as?
When saving JPG images with Pixelmator or Photoshop, I select a quality from the scale 1–100 that gives optimum file-size.
Later on, I sometimes take these images and crop them a little more (not ...
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9
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5
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How to Set JPG Type as The default save type in Photoshop CS6
Is there any option to save a file only in .jpg file format in Photoshop CS6? Actually I don't want to take any scrolling to indicate JPG mode when I'm going to save or save as an image.
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Save a JPG without a background
I have created this image in Photoshop:
Layers:
I would like to save this arrow to a .jpg file without the white background rectangle. How can I achieve that? I was trying to hide the background ...
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8
votes
3
answers
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Why does Photoshop want to save JPEG as quality '10' out of 12?
I'm currently editing a bunch of images (JPEGs) and Photoshop keeps wanting to save them as 10/12 instead of 12/12.
Why does it constantly want to save it as 10/12 instead of 12/12? Is there an ...
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8
votes
1
answer
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Can .jpg have transparency?
I have read everywhere that .jpg can't have transparency and you can't save it as transparent.
But I have a .jpg picture with transparency.
Link to the picture
Can anyone explain how the picture I ...
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How do I view a JPEG's EXIF data in Gimp?
I would like to view a JPEG's EXIF data in Gimp, perhaps modifying it.
How do I do this?
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5
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Is there any method to deliberately digitally corrupt an image?
For an art project. I want to take a high-resolution digital image and digitally 'corrode' it.
My original intention was to subject an image to repeated jpg compression, and show the iterations, but ...
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What's the easiest way to convert a .jpg image with white background into .png with alpha channel?
example .jpg:
Ideal .png result:
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6
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3
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Image looks 'foggy' when exported as CMYK jpeg from Photoshop
I'm editing an image for print and I've got it all set up how I want in Photoshop (cs5), but when I go to File > Save as > Jpeg (quality 12, Baseline standard) the colours all seem duller and ...
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1
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How to view extremely large images?
Does anyone have a recommendation to view extremely large image files in Windows?
Default Windows image viewer tends to have issues with extremely large images. I'm talking about both large file size ...
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6
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2
answers
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How to make borders of images equal in InDesign?
I'm throwing together a newsletter in InDesign that requires linking JPG images. It looks fine in InDesign but when I export the image to Adobe reader the borders on my images change so that one side ...
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2
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Text I made in Photoshop becomes blurry when exported as JPG or PNG
I made an image with Photoshop. The text looks perfect in Photoshop but when I register it in .jpg or .png, the text looks blurry.
I tried everything, but nothing works. The font is Truetype, the ...
5
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2
answers
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What is the easiest way to reduce the file size of a TIFF without losing too much of the image's quality?
I have a few high res TIFF files I'd like to reduce in size as they are currently around 20 MB, but need to get them down to no more than 10 MB so I can upload them to a website. Is there a way I can ...
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5
votes
3
answers
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Photoshop ruler guides embedded in JPEG image?
I saved an image of an iPhone from Google and when I opened it in Photoshop, it had ruler marks set in place around the phone. I've never seen or even heard of such a thing before. I thought it was my ...
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2
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Clipping mask retained in jpg file
I have a JPG which appears to of retained a clipping mask:
(http://gdh.guildmembers.co.uk/logos/LEVENE%20MAG.jpg)
When this file is opened in photoshop / fireworks and then the "Paths" tab is ...
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1
answer
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jpeg colours not displaying correctly in Chrome, FF and Safari
We seem to be experiencing issues with some of our jpeg product images displaying colours differently across different browsers. (When wrong, they look as if their hues have been shifted and vibrancy ...
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2
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Why JPEG files saved in my digital camera are higher size vs JPEG files saved in my computer?
When I took pictures using my digicam, it saves those on higher size (over 1 MB) JPEG files. What I usually do is that I open them on some image editing application such as Paint (windows) or Preview (...
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1
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How does this image interleave from grayscale to color?
I came across this image (re-uploaded below) that seems to load with interleaving on.
There is also another pass between the blue/yellow pass that is a lower resolution full-color version of the ...
4
votes
1
answer
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Why does a JPEGs file size increase after cropping and saving for web in Photoshop?
When I save my image for the web in Adobe Photoshop, the produced jpeg is larger than the original jpeg file. The only alteration done to the image is cropping.
How is this possible? I am saving the ...
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4
votes
2
answers
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How was this Path embedded in a JPG image?
If one downloads this image to their computer and opens it in Photoshop, they will notice something very interesting in the Paths panel:
Several paths are included in this file, one for the laptop's ...
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4
votes
1
answer
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Photoshop CC: convert to frame timeline releases only one frame
I have a 20 second animation brought in from After Effects as a jpeg sequence. When I import it, it makes a video timeline, but I need to delete individual repeat frames so I can add a delay to reduce ...
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4
votes
1
answer
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Can a jpeg contain tiff image data?
My graphic designer sent me a file and went on vacation! I think the file may contain what I need, but I don't know how to access it.
The file has a jpeg extension and it appears to be only 150 x 83 ...
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4
votes
3
answers
118
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Delivery of JPG logo files to client [closed]
When providing logo files to a client, I always include AI, PDF and social media PNG. I'm not sure what to do with JPG though. What size (document size) JPG is standard to send to a client? Are ...
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Could not open JPG file in Photoshop [closed]
I download Image from an Internet and want to open this jpeg Image in Photoshop but I got an errorCould not complete your request because of a problem parsing the JPEG Data.
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How many times can I open and resave a jpeg until its quality noticeably drops?
This isn't a problem I'm currently facing, rather just a curious thought.
I know that every time you open and resave a jpeg it will lose information, How many time could you do this until there is a ...
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4
answers
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How can we talk about the “resolution” of a JPEG file?
A JPEG is characterised with three parameters: width (pixel), height (pixel) and bit depth (bits per pixel). And resolution is a characteristic for output devices, e.g., monitors or printers. Why? ...
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Why does saving low quality JPGs as high quality in Photoshop increase their file size?
I have a low quality background image that is about 85kb. If I open the file in Photoshop and then save it at 100% quality, the file size increases to 640kb. This doesn't make sense, the image is ...
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votes
1
answer
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Merging Layers Before Saving?
I read somewhere that before you save your photo you should merge the layers, including watermarks, before saving then save. My question is this:
Is there any benefit to merging the layers (or ...
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3
votes
2
answers
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Need to improve the quality of images with GIMP
I have a number of jpg images whose quality I would like to improve. It is planned to both print them and use them in digital format. I guess to use the GIMP or another programm that I can install in ...
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Photoshop shortcut for File, Save As, Format: PNG or JPG, Save, OK [duplicate]
Classical situation: you're working in Photoshop on a PSD file and you want a to export it to PNG or JPG.
Here is the usual way: menu File > Save As > Click on Format > Find PNG in the list and ...
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votes
2
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How to batch convert RAW NEF to JPEG in GIMP?
I have dozens of pictures in RAW .NEF format from a Nikon camera that I want to convert to JPEG. I found this page with a Script-fu plugin that has a batch mode. I installed GIMP and UFRAW with:
brew ...
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2
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Photoshop adding border on saving to a JPG image
I don't know why but, when I save a Photoshop file it automatically changes the file size and adds a white padding on the top and bottom of the image: see a screen recording how this is happening here:...
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3
votes
2
answers
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Small JPEG image (just 21.8 KB) without lack of quality — why is that?
This image size is just 21.8 KB without lack of quality. Why is that? How is it done?
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votes
1
answer
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When resaving JPEGs, the file size increases, but the quality is not changed – why?
I was experimenting with JPEG quality loss upon resaving and noticed that not only (even after four resaves) did the quality not degrade (down to pixel level), but the file sizes actually increased by ...
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votes
1
answer
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Acrobat / Illustrator: Grayscale images lose contrast on import
The original image I imported into Gimp, then converted it to grayscale by switching to grayscale mode. I exported it as Lenna-gray.jpg. After switching back to RGB mode, I exported again, as Lenna-...
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6
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"placed" Photoshop images in Illustrator - blurry when saved as .pdf?
I've edited some images in Photoshop to be used in a .pdf I'm creating in Illustrator.
In PS, the images looked great and were saved with the following settings: .jpg/CMYK/Image Options: 10/Maximum. I ...
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2
votes
2
answers
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How do I trace this bitmap with JPEG artifacts?
I'm attempting to trace the following bitmap:
Image by ACStewart from the web comic "Behind the GIFs"
As humans, we can clearly see this was originally a vector, and should trace well. The problem ...
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4
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how to import a mathematical equation in Corel Draw X5
I have a problem I could not solve. I am doing a poster in Corel Draw X5, and as it is a physics poster, I need to put mathematical equations in it. The Corel built in text editor is just completely ...
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2
votes
2
answers
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Large web background image - how to split into JPG and PNG part
On a website I'm working on, the design team wants a large background image. Uncompressed, it is several hundred kilobytes (both in JPG and PNG). Most parts of the background image are blurred, but ...
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2
votes
2
answers
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How to fill with similar colours?
I have this image that have been damaged by JPG, and would very much like to restore it, as if it had never been compressed with JPG.
Can someone help me with this? I assume I need to fill with ...
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2
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2
answers
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How to reduce file size of png file after setting transparent background in GIMP?
Suppose you have a .jpg photo such as this apple:
(.jpg 24KB)
You use GIMP to add an alpha channel and remove the white background. As .jpg does not support transparency (see this question), you ...
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1
answer
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How can I export an Illustrator JPEG - PNG while keeping the whitespace?
I created a logo in illustrator for a client. When I export it and save it as a JPEG the image is clear but the artboard gets cut of. It only saves the logo itself, there is no white space. How can I ...
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votes
2
answers
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Krita PNG or JPEG not saving?
I've tried a grand total of 12 times to save my Krita files (called .kra) as .png or .jpg files, but it doesn't work. Each time I try, Krita freezes for a few minutes and then shuts down without ...
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