PNG format

Would someone in the know like to hesitate a guess, or maybe even know, why the PNG format is not supported in Lightroom other than in the Identity plate? It seem odd because PNG uses ZIP compression which is lossless, and slightly more effective than LZW (slightly smaller files). - is a newer format, designed to be both verstile and royalty free, back when the LZW patent was disputed.
I ask because in another application that I use (Sony Vegas) it is recommended to use PNG files as opposed to JPG when creating projects comprising videos and still images and not even having PNG as an option in the Export dialogue kind of extends my workflow somewhat. Not a complaint this, just a question out of interest as I may well be missing the obvious.

First of all, metadata is really a non-issue, isn't it? If you need to not have metadata (and why wouldn't you at least want to preserve the copyright?) just remove it.
My point was that most PNG convertors currently do NOT support metadata. I was not suggesting to use PNG format if you want to remove metadata from the file.
Then you say:
JPEG almost always gives you a better size/quality trade-off
This is true, but not what the orginal poster was asking – Why doeesn't LR support PNG export.
If you want high-quality compressed images, with 16 bit color (48 bit), wide gamut profile, Alpha channel, transparency, and metadata support, then JPEG2000 is a far better choice. Just don't use it in Web applications as most browsers do not support JPEG2000 files.

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I am trying to use photomerge compose. I open one standard jpeg image and one image that is my business logo in a png format. When I select the png image, to extract the logo from it, it appears as all white and will not allow me to select the logo from

I am trying to use photomerge compose. I open one standard jpeg image and one image that is my business logo in a png format. When I select the png image, to extract the logo from it, it appears as all white and will not allow me to select the logo from it. It has worked in the past but I downloaded the update today and photomerge will not work correctly. Any ideas?

hedger,
How do you expect anyone to help when we don't know a darned thing about the file, abut your setup, exact version of Photoshop and your OS, machine specs, etc.?
BOILERPLATE TEXT:
Note that this is boilerplate text.
If you give complete and detailed information about your setup and the issue at hand,
such as your platform (Mac or Win),
exact versions of your OS, of Photoshop (not just "CS6", but something like CS6v.13.0.6) and of Bridge,
your settings in Photoshop > Preference > Performance
the type of file you were working on,
machine specs, such as total installed RAM, scratch file HDs, total available HD space, video card specs, including total VRAM installed,
what troubleshooting steps you have taken so far,
what error message(s) you receive,
if having issues opening raw files also the exact camera make and model that generated them,
if you're having printing issues, indicate the exact make and model of your printer, paper size, image dimensions in pixels (so many pixels wide by so many pixels high). if going through a RIP, specify that too.
etc.,
someone may be able to help you (not necessarily this poster, who is not a Windows user).
a screen shot of your settings or of the image could be very helpful too.
Please read this FAQ for advice on how to ask your questions correctly for quicker and better answers:
http://forums.adobe.com/thread/419981?tstart=0
Thanks!

I just set up a new computer running Windows 8.1. When I go to my icloud photostream, the pictures are in PNG format NOT JPG. When I open and upload photos from the photostream, the resolution is so low that the image quality is terrible. Help?!?

I just set up a new computer running Windows 8.1. When I go to my icloud photostream, the pictures are in PNG format NOT JPG. When I open and upload photos from the photostream, the resolution is so low that the image quality is terrible. Help?!?

Hey Sierra, You can do just what you have stated. My question, what is your "other"? If it is over 1.5 GB you most likely have corrupt files. Doing a Restore to New, Factory restore should correct it. Just make sure you make a full backup of all information on your iPod to your computer before you restore, so you don't lose your stuff, contacts, videos, pictures, non-iTunes music, etc, use the cable and connect with your computer. Then, via cable, connect to your computer, run the Restore to new, don't use your backup. Treat this iPod as if it was your first one ever. When restore is done, set up and add what info you wish to install on this iPod. The music apps etc you purchased should be on your computer, if not you should be able to retrieve purchased apps and music from iTunes. Any music, videos, apps not purchased from iTunes will be lost to you if you do not save them to your computer or the cloud first. When your done, make a current Backup and you should good to go. Hope this helps. Good luck. Cheers.

Photoshop CS3 .png format not appearing in the "Save As" drop down?

I have been searching all over the internet and forums like this for a solution but have not come across one that works. I have tried installing an update for .png 8 bit and replacing the .png format file entirely, and to no avail. I'm sure all updates are there for my Photoshop CS3 because I just had my lap top worked on and they had to re-add my CS3, so I think that if any updates were needed they would have done that. I have worked with programs like Photoshop for awhile now but I do not know to much about it's inner workers (files, etc.) so I am not sure what the problem is, and I really need this fixed ASAP. I am working on work and I need that .png format. I can't do without it and .png shows up in the "Save For Web Devices", but I am using trasnparency and it is not doing any justice to my images.
Windows Vista
Adobe PhotoShop CS3
15.7 GB free out of 105 GB
I was working on Photoshop all day yesterday - no problem. Today, I can't get .png.

Be very specific: Does it say 10.0 or 10.0.1? If the former, I recommend you visit this page and download and install the update:
http://www.adobe.com/support/downloads/detail.jsp?ftpID=3775
The plug-in should be here:
C:\Program Files\Adobe\Adobe Photoshop CS3\Plug-Ins\File Formats\Png.8bi
It should have a size and date of 98,304 bytes modified on Saturday, October 20, 2007, 8:11:42 AM EST.
-Noel

Can we save our canvas as a .psd(photoshop) file? as we are saving with .jpg or .png format with the

               I have 2-3 image in my canvas and i want to save it in .psd format means each image will act as a different layer when we will open the saved file in                  photoshop.
                Thanks & Regards,
                Parth

no dear there is not any option as u suggested.
rightnow i am using my canvas and making the bytearray of it and then I am saving this bytearray with .jpg/.png format with the JPEG/PNG Encoders. but what it does? It makes a single .jpg file of canvas so if there are 3 images in it than it will save entier canvas as .jpg.
I want to save each image as different layer and finally the canvas should be save in .psd format show i can open that .psd file in photoshop..
thanks for the replies
Thanks and Regards,
Parth

ICC profile to convert RGB to CMYK,   jpeg is ok, png format have a problem

When I use ICC profile to convert RGB to CMYK, jpeg format is ok, but png format have a problem.the color is lossy.
It means, the png file color is shallow than jpeg file after convert.Could anybody help me?
thanks
source code
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Iterator;
import javax.imageio.IIOImage;
import javax.imageio.ImageIO;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.ImageWriteParam;
import javax.imageio.ImageWriter;
import javax.imageio.metadata.IIOMetadata;
import javax.imageio.metadata.IIOMetadataNode;
import javax.imageio.stream.ImageOutputStream;
import org.w3c.dom.Node;
import com.sun.image.codec.jpeg.ImageFormatException;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGEncodeParam;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
public class TestImage {
     public static void main(String args[]) throws ImageFormatException, IOException{
          BufferedImage readImage = null;
          try {
              readImage = ImageIO.read(new File("C:\\TEST.jpg"));
          } catch (Exception e) {
              e.printStackTrace();
              readImage = null;
          readImage = CMYKProfile.getInstance().doChColor(readImage);
          writeImage(readImage, "C:\\TEST_after_.jpg", 1.0f);
    protected static String getSuffix(String filename) {
        int i = filename.lastIndexOf('.');
        if(i>0 && i<filename.length()-1) {
            return filename.substring(i+1).toLowerCase();
        return "";
    protected static void writeImage(BufferedImage image, String filename, float quality) {
        Iterator writers = ImageIO.getImageWritersBySuffix(getSuffix(filename));
        System.out.println("filename�F"+filename);
        if (writers.hasNext()) {
            ImageWriter writer = (ImageWriter)writers.next();
            try {
                ImageOutputStream stream
                    = ImageIO.createImageOutputStream(new File(filename));
                writer.setOutput(stream);
                ImageWriteParam param = writer.getDefaultWriteParam();
                if (param.canWriteCompressed()) {
                    param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);//NO COMPRESS
                    param.setCompressionQuality(quality);
                } else {
                    System.out.println("Compression is not supported.");
                IIOMetadata metadata = null;
                if(getSuffix(filename).equals("png") || getSuffix(filename).equals("PNG")){
                     ImageTypeSpecifier imageTypeSpecifier = new ImageTypeSpecifier(image);
                     metadata = writer.getDefaultImageMetadata(imageTypeSpecifier, param);
                        String sFormat = "javax_imageio_png_1.0";
                        Node node = metadata.getAsTree(sFormat);
                        IIOMetadataNode gammaNode = new IIOMetadataNode("gAMA");
                        String sGamma = "55556";
                        gammaNode.setAttribute("value", sGamma);
                        node.appendChild(gammaNode);
                        metadata.setFromTree(sFormat, node);
                writer.write(null, new IIOImage(image, null, metadata), param);
                writer.dispose();
                return;
            } catch (IOException ex) {
                ex.printStackTrace();
}

Hi,
I am having similar problems. I have read somewhere that png format can not handle CMYK colorspace anyway, which I find odd (and plainly stupid IM(NS)HO) which would mean that converting to RGB and therefore using profiles is mandatory.
May be you should check if the internal format of the png files claims it is RGB or CMYK (using ImageMagick's "identify" command for example).
HTH
JG

When I receive an email that contains a logo in a png format the logo is repeated twice. Why is this happening in my email when it is not happening in other recipient's mail.

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Why is this happening in my MAC maverick system when it does not happening in other
MAC recipients' email?
Nan

WMP is a windows proprietary format.
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What version of photoshop are you using?
Can you post a screenshot of the action and settings your using in the create droplet dialog?

The crawled property of Image width and height - is there a differnce when the image is png format?

Hi,
We are indexing file share with images and get the properties of Image Width, Image Height, Image Size (we show it as refiners in SharePoint after make it managed properties). Somehow when the picture is png format - we see only Size but not height and width.
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keren tsur

Hi Keren,
According to your description, my understanding is that when you tried to crawl file share with images, the ows_ImageWidth and ows_ImageHeight crawled property for PNG file could not be generated.
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Best Regards,
Eric
Eric Tao
TechNet Community Support

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Dear Larry
Thank you very much for the information. I hate pressing buttons when I am not sure of what will happen!
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Hi
In my own created extension for adobe inDesign using CS Extension builder 1.5, I am trying to export a page item lying inside a rectangle frame longer than frame height. Full image is not exported but it gets cropped which is of the rectangle height. I need to get full image exported in PNG format. The item can be text/image/drawing/or group of multiple items lying inside a rectangle frame.
Sometimes the correct image is exported although the rectangle frame size is smaller than the inside image/item. Following is the code I’m using to export the page item.
var targetItem:PageItem = pageItem.allPageItems[0];
targetItem.exportFile(ExportFormat.PNG_FORMAT, targetFile, false);
Can anybody help me out?
Thanks and best regards
Sal

the answer is at : http://forums.adobe.com/thread/1060138

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Thanks, that helps. I also found that I cropped to much of the canvas. After increasing the canvas area AND setting to fill all is well now. I think your suggestion may help with the scrolling affect problem I'm having when using different resolutions. I am going to try to set the size in one dimension (height) so that different resolution screens see the same scroll actions. Thanks Mylenium!

HT201317 My photos from iPhone 6 appear in PNG format instead of JPG. How can that be changed?

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As you can see from the screenshot, I got that red box illuminate.

It could be malware that's causing the archive / Top Sites problem.
Download and run the adware removal tool here > The Safe Mac » Adware Removal Guide
Easy, safe, and only takes a minute or two.
If no malware is found ...
From your Safari menu bar click Safari > Preferences then select the Privacy tab.
Click: Remove All Website Data
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Click Go then move the Cache.db file to the Trash.
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From the Safari menu bar click Safari > Preferences then select the Extensions tab. Turn that OFF, quit and relaunch Safari to test.
If that helped, turn one extension on then quit and relaunch Safari to test until you find the incompatible extension then click uninstall.

How to save JFrame image as png format?

hello all..
i've encountered some problem while i using my Java3D to load my VRML file & save it in png format.
i've loaded the VRML file in my Java 3D and display it on the JFrame.
now, i want to save the image as PNG format, but i can't save the image, but just save the background & canvas.
here's my code:
Button button = new Button("Save image");
button.addActionListener( new ActionListener()
public void actionPerformed(ActionEvent event)
RenderedImage image = myCreateImage();
// Write generated image to a file
try {
FileDialog fd = new FileDialog(f, "Save as PNG", FileDialog.SAVE);
fd.show();
String name= fd.getFile();
// Save as PNG
ImageIO.write((RenderedImage)image, "png", new File(name));
catch (IOException e) {}
content_pane.add(button, BorderLayout.SOUTH);
try
FileReader fr = new FileReader( "TS.java" );
BufferedReader br = new BufferedReader(fr);
catch(Exception e) {}
pack();
setLocationRelativeTo( null );
setSize(800, 600);
setLocation(0, 40);
setVisible(true);
setBackground(Color.white);
public RenderedImage myCreateImage() {
int width = 800;
int height = 600;
// Create a buffered image in which to draw
BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D g2d = bufferedImage.createGraphics();
g2d.dispose();
return bufferedImage;
private void loadFile(String file) {
int flag = VRML97Loader.LOAD_ALL;
if(staticLoad)
flag &= ~VRML97Loader.LOAD_BEHAVIOR_NODES;
VRML97Loader loader = new VRML97Loader(flag);
// if the file is a directory, ignore it
File f = new File(file);
if(f.exists() && !f.isFile()) {
System.out.println("Can't load directories specified");
System.exit(1);
URL url = null;
Scene scene = null;
try {
if(url != null)
scene = loader.load(url);
else
scene = loader.load("vrml/fish.wrl");
} catch(Exception e) {
System.out.println("Exception loading URL:" + e);
e.printStackTrace();
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urlLabel.setText("File " + file);
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sceneGroup.compile();
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Your g2d is doring nothing!
Indent your code.
class{
   type data1;
   type data2;
   type method(){
       statement;
        clause{
           statement;

PNG format

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