Questions tagged [jpg]

Questions about the JPEG file format. JPEG is a commonly used method of lossy compression for digital photography.

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27 votes
9 answers
118k views

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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  • 387
25 votes
4 answers
13k views

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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22 votes
10 answers
16k views

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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  • 221
17 votes
3 answers
8k views

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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13 votes
7 answers
174k views

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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  • 241
10 votes
3 answers
6k views

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 ...
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9 votes
4 answers
6k views

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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  • 426
9 votes
5 answers
71k views

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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  • 447
8 votes
5 answers
78k views

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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  • 413
8 votes
3 answers
15k views

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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7 votes
5 answers
5k views

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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7 votes
1 answer
331 views

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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6 votes
4 answers
29k views

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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  • 175
6 votes
3 answers
31k views

What are lossless image formats?

What are lossless image formats?
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6 votes
4 answers
33k views

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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6 votes
3 answers
36k views

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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  • 1,659
6 votes
1 answer
12k views

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 votes
2 answers
594 views

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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  • 69
5 votes
1 answer
14k views

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 ...
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5 votes
2 answers
80k views

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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  • 53
5 votes
3 answers
17k views

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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  • 3,648
5 votes
2 answers
10k views

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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  • 153
5 votes
2 answers
2k views

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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5 votes
1 answer
7k views

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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  • 343
5 votes
2 answers
1k views

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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  • 53
5 votes
1 answer
3k views

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 ...
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4 votes
1 answer
8k views

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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  • 143
4 votes
1 answer
7k views

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
3 answers
112 views

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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  • 41
4 votes
2 answers
177k views

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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3 votes
4 answers
4k views

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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  • 3,648
3 votes
4 answers
20k views

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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3 votes
5 answers
3k views

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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3 votes
1 answer
3k views

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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  • 596
3 votes
2 answers
22k views

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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  • 481
3 votes
2 answers
390 views

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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  • 33
3 votes
2 answers
3k views

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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3 votes
1 answer
4k views

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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3 votes
2 answers
3k views

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
364 views

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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  • 31
3 votes
1 answer
2k views

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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  • 31
3 votes
1 answer
1k views

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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  • 224
3 votes
6 answers
61k views

"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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  • 257
2 votes
2 answers
789 views

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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  • 211
2 votes
4 answers
17k views

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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  • 121
2 votes
2 answers
938 views

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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  • 415
2 votes
2 answers
341 views

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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  • 123
2 votes
1 answer
1k views

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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  • 160
2 votes
2 answers
13k views

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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2 votes
1 answer
779 views

How can I reopen my psd file and view the layers?

I saved my work as a jpg from photoshop but now i need to make edits to the file. How can I view th layers again in photoshop? I need to add a complete da
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