I understand that the .jpg format is a compression file that will degrade over time after repeated saves using photo editing software.
However, does this loss of information from a compressed file still/also occur after the file has been placed into other programs such as InDesign, Word, etc.?
I'm trying to understand jpg file compression and how Photoshop deals with it. Let's say I have two jpg files of the same subject - one was compressed to 4.4 MB and the other was compressed to 1.2 MB. I was told by a friend that once they are opened in Photoshop, that it did not matter how much compression was previously done since opening them in Photoshop will uncompress them back to their original uncompressed 20+ MB file size and that you will not lose any image quality. So that a higher level of original compression will not degrade the photo quality since Photoshop brings back (uncompresses) the file back to the original size when the picture was taken.
View 1 Replies View Relatedcompressing my pics.
how to do it?
I've got a file of about 40mb which saves as a max quality jpeg in Photoshop at around 12mb. Once it goes into InDesign and comes out of the other end as part of a PDF the file size is down to 3mb.
I'm convinced data is being lost but one of the answers seems to indicate that zip compression is now being used in addition to the jpeg.
I always thought it was hardly worth zip compressing files like jpg, mp3 etc that are already compressed and that the only way InDesign could be knocking my jpegs down to a fraction of their size was by recompressing them as lower-quality jpegs?
How do i compress JPEG images?
I have Fireworks and Paint only.
Do i need special software?
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?
View 3 Replies View Relatedwhere I can find a royalty free animation?
You know how when you copy files, or delete them on Windows theres that little animation of the piece of paper destroying itself and stuff like that?
what is the diffrence between these two pictures(the same picture both are .JPG images but the quality and size is diffrent)
i assume that they are saved with diffrent compression and encoding or sumthing like that.
BMW 1 (Good Quality)
BMW 2 (Normal Quality)
Cadalac 1 (Good Quality)
Cadalac 2 (Normal Quality)
EDIT: to see the diffrence between them, you must look at them with atleast 2x or 3x
I need to create a Batch process that takes a directory full of sub-directories (which contain uncompressed Tiff files)and re-saves the TIFFs with LZW compression in the same directories WITHOUT creating any new files. My problem is that when creating the action the only way I can save with LZW compression is by using the "Save as" option. This creates new files and when I run the action it dumps all the files in whatever directory I am saving in while creating the action, instead of saving them in their original locations.
View 1 Replies View Relatedvery slow saving of TIFF files I came across several articles online ("The Mac Performance Guide" being one of them) mentioning that if you turn off compression for TIFF files it'll take a lot less time. The problem is I can't seem to find any compression settings at all.
I'm using Photoshop CS4 on a Mac, mostly editing via Lightroom 3 first (I suspected the issue being that Lightroom opens up the files as 16 bit in Photoshop, but even 8 bit images in Photoshop won't give me any compression options). The above link specifies CS3, CS4 and CS5, so it should be in there somewhere.
One of my clients wants their files sent securely on DVD. One suggestion was to ZIP the jpegs and then appy the password option.
Has anyone done this? As it is really for security I would save at minimum compression.
But Does it affect the image quality?
Is there a better solution for secure delivery?
I have CS3 extended and have been compiling a series of high resolution photographs into one layer in photoshop. I have copy and pasted each photo and then stitched them together resulting in a file that is 1.35Gb. I want to compress the file, keeping the resolution as high as possible, so it is easier to use in illustrator and import into ArcGIS. I have tried saving the file as a jpg, pdf and tiff with variable compression qualities. As soon as i open the image up in a different programme and zoom in I loose the picture, eitehr to a blank screen or a message saying 'invalid format/picture'. Opening the file and saving is taking so long too do as well...
View 3 Replies View RelatedAdobe Photo Shop CS5 offers three options for conversion of a RAW file to TIFF (LZW, ZIP, and JPEG).
I do not understand which of these employ the "run-length encoding" scheme that should make the TIFF file much smaller than the RAW file. I have used all three types of compression but the only one that resulted in a substantial reduction in size was the JPEG compression.
The TIFF file with no compression is actually twice the size of the raw file. What are the LZW and ZIP compressions actually doing?
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?
View 1 Replies View RelatedI'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?
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...?
After working on a jpg file, when I want to save it, still as jpg, with my Photoshop CS5,
- sometimes photoshop will just save the picture, and it's done
- sometimes photoshop will show me the compression dialog, "JPEG Options", in which I can choose the compression ratio, the format options (baseline, baseline optimized, progressive), and have an estimation of the total file size
While not being prompted any dialog is simpler, and I'll then simply assume Photoshop decides to retain the current image's compression and format rules, I must say I like to be in control, and I'd like to know under what form the file is being saved without having to resort to the much more complex "Save For Web" menu.
WHAT "triggers" the appearance of the JPEG Options when we close/save a jpeg file, in photoshop ? What makes this menu not to appear, what makes it appear ? If there are trivial file operations/changes/filters that necessarily trigger its appearance when we want to save, something like that ?
I use CS5 on Win 7 64-bit. Today I learned about this option to disable file compression to speed up save time:
[URL]........
I downloaded the reg key and installed it. When I restarted PS to test it on a file, there was no difference in either save time or file size. The test file is a 300 MB multi-layered PSD file.
When I save a PDF file in Photoshop CC in CMYK color with JPEG compression (quality = high), it will save without any errors. However, when I open the file in Acrobat, I get an "Out of Memory" pop up error. I press Ok, and the document is just displayed as a blank white image.
I'm using Win7 64-bit, Photoshop CC 64-bit. Plenty of memory (24GB) and allocated RAM in preferences, and I've done some troubleshooting that leads me to believe the error is not due to system memory, but rather a specific bug in the software. I have Photoshop CS6 on the same machine, and if I open the PSD, save as PDF with the above settings, everything is fine when I open it using Acrobat. This seems to just be for Photoshop CC, not CS6.
Here is the troubleshooting I've done so far:
PDF format, RGB color, any other settings --> Acrobat can open the file.
PDF format, CMYK, no compression --> Acrobat can open the file.
PDF format, CMYK, JPEG compression [medium] --> Acrobat can open the file.
PDF format, CMYK, JPEG compression [high] --> Acrobat can NOT open the file because it encounters the "out of memory" error.
PDF format, CMYK, JPEG compression [maximum] --> Acrobat can open the file.
I occasionally use the option when saving an edited picture to just overwrite the original. I would have thought that this option might go further by having the program default of making the saved copy the the same size as the original or if its dimensions had altered save at the same resolution& degree of compression.
View 1 Replies View Relatedi 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
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.
View 16 Replies View RelatedI'm trying to add audio to a slide show. I've done it before on this computer with no problem, but now it's telling me I don't have the correct compression files installed on my computer.
View 1 Replies View RelatedI did a ton of research on Video Editing software and decided to try VS Pro X4 first due to it's ease of use (good for me) and capabilities that I can grow into. So far I would say the experience has been positive and feel I could happily settle in with VS Pro X4 for the long haul, but have just a couple of questions I would like to resolve first. They may not be issues at all, but more due to my lack of knowledge, but figured experienced users like yourselves would be able to determine that in short order.
I've split my questions into separate (3) threads so that people don't have to suffer through content they're not interested in. Here's a brief run down on where I'm at and what I'm trying to do.
I'm about half-way through my 30day trial of VS Pro X4, and starting to feel a little more comfortable with the software, but a few things are still puzzling me. Granted I've only scratched the surface of the SW capabilities so far.
I'm a complete newbie to this digital video stuff, however I'm not a complete newbie to computers. Basically I have a shoeobox of old 8mm camcorder tapes (analog) and have finally decided to take the plunge and digitize them, mainly because we never end up watching the tapes 'cause it's such a pain.
First question; A friend of mine is letting me borrow his ADVC300 converter, connected to a Firewire400 card in my PC. VS Pro X4 capture works fine, was able to capture an entire 8mm tape. It was an entire tape because that's the way it was taped, it was a music performance so the tape ran through the whole show. I was able to add a simple title and burn to a DVD disc. What should I expect for MPEG compression when burning to a DVD? I couldn't fit it all on one DVD disc, had to split it into two discs, not a big deal, just thought the mpeg conversion would have compressed it more? Maybe that's wishful thinking on my part? It's a 2 hour & 2minute video which equals a large ~8.7Gb raw DV capture file through the ADVC. I know a DVD is 4.7Gb max so obviously the 8.7Gb raw file won't fit, but is 2:1 compression/conversion expecting too much for the mpeg conversion? Maybe there's some options I should be using to compress it more?
All in all I'm pretty happy with the ADVC to digital capture functions with VSPx4 so far.
I was just making a short, 1:12-long video encoded as H.264 in an MP4 wrapper. I had edited the video in Premiere Pro CC, and was exporting through Adobe Media Encoder at a framerate of 29.97 FPS and a resolution of 1920x1080. I wanted to do a test to see how much GPU acceleration benefits me. So, I ran two different tests, one with and one without. The one with GPU acceleration finished in 2:09. The one without it took 2:40, definately enough to justify using GPU acceleration (my GPU is an NVidia GTX 660 Ti which I have overclocked). I am sure my benefits would be even greater in most videos I make, since this one had relatively few effects. However, I checked the file sizes out of curiosity, and found that the one made with GPU acceleration was 175 MB in size, and the other was 176 MB. While the difference is pretty small, I am wondering why it exists at all. I checked the bitrates, and the one made with GPU acceleration is 19,824 KB/s, whereas the other is 19,966 KB/s. I used the exact same presets for both. I even re-encoded the videos again just to test it and verify the results, and the second test confirms what the first showed. So, what I am wondering is: What is it that made this possible, and could this be used to my advantage in future productions?
In case it is in any way relevant, these are my computer's specifications:
-Hardware-
Case- MSI Interceptor Series Barricade
Mainboard- MSI Z77A-G45
Power Supply Unit- Corsair HX-750
[Code]....
After I set my render settings in the render queue for h.264 movie the sound sample rate always jump back to the lowest quality and I can't export the movie with the sound qulity I want to.
View 1 Replies View RelatedI am creating video in FLV (custome mode). The only audio compression option is PCM which makes video too big.
How do I add different audio compression codec for FLV video? With other video formats/codecs mpeg-4 I have many moore audio compression options, but not for FLV.
I was using Premiere Elements 2.0. I have an issue on exporting my video to YouTube via MP4: I can't seem to change the compression ratio, it seems fixed at 128k. This lousy ratio is causing compression artifacts given that the source audio has a low level hiss.
How can I improve the compression?
Any recommendation for a quicktime .mov compression setting that results in good quality and a manageable file size?
Pro X3
Windows Vista
I'm doing a video and the client requested the final product as a quicktime file. I've had good results with creating .wmv files but haven't had much luck with .mp4 or .mov files. Using the "custom" option under "create video file" I select "Quicktime Movie Files" as the type. Every compression option I choose comes out crappy and a very small file size. When I select "no compression" the video looks great, but it's almost 2 gigs (the video is only about a minute long). The client will be uploading this video to a product page on Amazon and I think they have a maximum file size, probably around 500 MB.
I hope to convince the client to just accept a .wmv or maybe even a .flv file instead since I think Amazon accepts both of those. But in an effort to give them what they want, I hope to deliver in a .mov format.
Installed the latest 2.8.4 build for WIN 32 bit. This newly installed version only recognizes the .xcf file type; it will not save to, or load any of my numerous files saved as .xcf.gz
The message I get is:
The given filename does not have any known file extension. enter a known file extension or select a file format from the file format list.
The file format list only contains .xcf
I've uninstalled and reinstalled with a fresh download, with the same results.
Simply wondering how possible it is, because we've got roughly 2400 files that need to be re-saved without RLE compression due to causing issues in the conversion process. A manual job would take quite a while.
If there's no way of automating the process, is there any way of reducing the time of re-saving every image individually at all?