Image files and changing extensions

Hello All, I am completely new to photoshop and for that matter, graphic design in general. I always thought that a particular image type (.gif, .jpeg, .bmp) needs to be altered by a graphics program into another graphics type, i.e. 'Save as...'. A collegue is trying to change an image simplt by changing the extension and I don't believe that will work. Am I on the right track? TIA.

You are right and your colleague is wrong.
The extension relates to a data format within the file and you can't change that with a different extension.

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Many thanks to responded to my question and sorry not to get back sooner.
Yes, I discovered by this unfortunate experience that the names of photos are a serious issue if the site is to ever go to an FTP server. Apple should discuss this carefully in their "manual".
One more question: I uploaded the website to a folder on my desktop. When I open it, unlike the photos in iWeb, there are folders for each page which have all the photos in them. I went through each folder and changed the names to be FTP compatible. I'm using iWeb SEO Tool which allows one to upload from this local folder to an FTP server but having trouble.
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Thanks again for your help ...
Phil McP

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Hi,
i have 3 files in all. The two image files and one text file. I need to place the image in the first image file, followed by text in the text file and then the image in the second image file, into one file.
Can anyone tell me how do i go about doing this ?
i tried using fileinputstream and fileoutputstream, which works fine if all the 3 files have text but when the first and the third file have image, the code doesn't give any error but the result file displays only the image from the first file and nothing else.
i am running short of time and need to do this really soon.
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poonam

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The other apprach would be to create a single image by drawing images and text strings on a BufferedImage object.
I think the first approach is preferable because you can easily extract the individual files from the zip/jar file

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I've developed a report running Oracle Reports 10g that is being emailed to a user. I would like to specify the name of the file and it's extension that is attached. Are there variables or parameters in Oracle Reports that I can use to accomplish this?
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Message was edited by:
Sutherland

Thank you for the quick reply and information. I almost thought you had solved my problem until I found out that distribution and bursting do not support delimited and spreadsheet output. One of the two files I need to email has a desformat of SPREADSHEET.
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Name of Drive storing image files has changed

I'm sure there must be a simple answer to this - but it has me stumped.
My OS is Windows XP Pro.
All of the images files that I have imported into Lightroom are located on an external hard drive that was labeled the "G" drive when I first installed it.
Now I have plugged in a Lexar Media thumb drive and that has usurped the "G" dive label and reassigned an "H" label to my external hard drive where all the image files were imported from.
So... now all my folders, key words, catalogs, etc, etc. are no longer showing up when I open Lightroom.
How do I reconnect with all the work I have done. I have tried to figure out how to undo the drive name change, but to no avail so far.
Can anyone point me in the right direction.
Thanks....Randy

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Difference between image file and .bin file

I want to know whats the difference between img and bin file and which is better

Functionally and generically, they are the same thing for devices like routers and switches and firewalls ...
Some "images" consist of more than one binary file ... like code for specific blades or modules (like a radio module on an AP).
In most cases, it's just a naming convention and they are the same.
For some systems, like computers, a binary file is an executable ... it gets loaded into some flavor of memory, usually RAM, and the instructions are executed. During the initial load, some code is typically executed to initialize the various sub-systems. All of this initialization takes time (think about booting a desktop or laptop computer from power-on to "ready-to-go").
One way to speed things up a little is to save the initialized environment as an "image" or snapshot of the "ready-to-go" state of the device.
Once the snapshot is saved, it can be loaded directly into a block of memory without the need of all of the initialization code or interpretation of the binary code. This tends to make things "boot" faster. As long as the system's hardware configuration hasn't changed since the snapshot / image was taken, it should be exactly as if the device was never turned off. Some desktop and laptops have a "hibernate" mode .. everything is powered down, but it boots up as fast as the snapshot image can be pushed into the memory from the hard drive.
If you have a specific example, post it up.
Good Luck
Scott

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I want to change the value on the first line the a new title plus the ext .dat. The file is below. This stays the same format just with different values.
ECG000 1 171 26112 9:14:56 23/04/2002
ECG000 8 43(0) 8 127 79 -24066 0 AED trace
I want to change the ECG000 to a new value eg Pat1.dat on the first line and Pat1 on the second line. When I read this file in and output to the dos window I get ECG000 0 0 0 and that is it. Any ideas why this is happening and how I can replace the values in the file??
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I think this is what you're looking for:     private void FileExt() {
          java.util.List data=new ArrayList();
          String s;
          try {
               BufferedReader br=new BufferedReader(new InputStreamReader(
                    new FileInputStream(new File("ECG000.HEADER"))));
               while ((s = br.readLine()) != null) {
                    data.add(s);
                    System.out.println(s);
               br.close();
          catch (FileNotFoundException fnfe) {
               System.out.println("Input file not found");
               return;
          catch (IOException ioe) {
               ioe.printStackTrace();
               return;
          ListIterator li=data.listIterator();
          try {
               PrintWriter ECGFile=new PrintWriter(new FileOutputStream(
                    new File("ECG.txt")));
               while(li.hasNext()) {
                    s=(String)li.next();
                    if (s.substring(0, 6).equals("ECG000")) {
                         s="Pat1.dat"+s.substring(6, s.length());
                    ECGFile.println(s);
               ECGFile.close();
          catch (FileNotFoundException fnfe1) {}
     }Mark

How read a pdf file and change TableCell height after reading it using itext api

I have created a pdf form file using itext ( see class CreatingFormClass ) with itext PdfPTable and PdfPCell. It is done successfully .
Now I read this pdf file and filling this pdf file(see class FillingFormClass ) and at this point i want to change PdfPCell height () according to Items.
It is possible or Not???
My code is given below.
Thanx in advance
public class FillPdfFormMainClass {
public static String RESULT1 = "E:/BlankForm.pdf";
 public static String RESULT2 = "E:/FilledForm.pdf";
 public static void main(String[] args) throws DocumentException, IOException {
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 // This part is Dynamic. It can be 1 item Or can be 25 items
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public class CreatingFormClass implements PdfPCellEvent {
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 table.setWidths(new int[]{1, 2});
 table.addCell("Name:");
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 cell.setCellEvent(new CreatingFormClass(1));
 table.addCell(cell);
 table.addCell("Item List:");
 cell = new PdfPCell();
 cell.setCellEvent(new CreatingFormClass(2));
 cell.setFixedHeight(60);
 table.addCell(cell);
 document.add(table);
 document.close();
 public void cellLayout(PdfPCell cell, Rectangle rectangle, PdfContentByte[] canvases) {
 PdfWriter writer = canvases[0].getPdfWriter();
 TextField text = new TextField(writer, rectangle, String.format("text_%s", tf));
 text.setBackgroundColor(new GrayColor(0.95f));
 switch (tf) {
 case 1:
 text.setText("Enter your name here...");
 text.setFontSize(8);
 text.setAlignment(Element.ALIGN_CENTER);
 break;
 case 2:
 text.setFontSize(8);
 text.setText("Enter Your Address");
 text.setOptions(TextField.MULTILINE);
 break;
 try {
 PdfFormField field = text.getTextField();
 writer.addAnnotation(field);
 } catch (IOException ioe) {
 throw new ExceptionConverter(ioe);
 } catch (DocumentException de) {
 throw new ExceptionConverter(de);
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 public void manipulatePdf(String src, String dest,String empName,String listOfItem) throws IOException, DocumentException {
 PdfReader reader = new PdfReader(src);
 PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(String.format(dest, empName)));
 AcroFields form = stamper.getAcroFields();
 form.setField("text_1", empName);
 form.setField("text_2", listOfItem);
 stamper.close();
 reader.close();

Hi,
I am facing the same problem. Please help me out. I just want to read a PDF file as bytes from one location and write it as another pdf file in some other location with a diolog box prompting to open or save in the location where we want.
I executed the following code:
try{
File report =new File(location);
BufferedInputStream in=new BufferedInputStream(new FileInputStream(report));
response.setContentType("application/x-download");
response.setHeader("Content-Disposition", "attachment; filename=" + report.getName());
OutputStream outs = response.getOutputStream();
int readlen;
byte buffer[] = new byte[ 256 ];
while( (readlen = in.read( buffer )) != -1 )
outs.write( buffer, 0, readlen );
outs.flush();
outs.close();
in.close();
response.setStatus(HttpServletResponse.SC_OK);
} catch (FileNotFoundException fileNotFoundException) {
PrintWriter out= response.getWriter();
out.print("<center>"+PxDSLUtils.getApplicationProperty("label.error.CTM_E017")+"</center>");
Though it prompts with open, save dialog box when i try to open directly or when i save it some where locally and then open it i am getting the following message " File is repaired ot damaged.Operation failed." Any idea about what can be done??? Its very urgent.Please suggest.
I am not convetin to string just reading and writng as bytes itself.
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Anyone can u help me out how i can do this...
I tried out with javax.imageio package but couldn't get it.
Thank Q
Vijay

Your WriteImage servlet needs to read the image file in from wherever it is (hard drive, database, whatever), then write it back out to the browser. To do that, first use the HTTPServletResponse object to send the appropriate headers, then call the getOutputStream() method to get an output stream to write the data to. This data will be sent to the browser which, if you've set the headers correctly, will display it as an image.
It's been a long time since I did this (we abandoned storing images in databases quite a long time ago), so I can't be more specific than that, but hopefully that'll be enough to get you going. If you run into any problems, reply and I'll see if I can help further.

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All my images are given my job number reference for people to order from so loosing them is a big issue.
homepage.mac.com/cjbphotography/

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i frankly have no idea how to create a multipart mixed request with boundaries. I get a bad http request error with the above code. Can please someone help me.
Thanks
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Your WriteImage servlet needs to read the image file in from wherever it is (hard drive, database, whatever), then write it back out to the browser. To do that, first use the HTTPServletResponse object to send the appropriate headers, then call the getOutputStream() method to get an output stream to write the data to. This data will be sent to the browser which, if you've set the headers correctly, will display it as an image.
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Upload Image file and retrieve image file

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Plz., give some example
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Plz., help me any one.

This question has been asked and answred so meny times.
I dont feel like writing the answer yet another time so please doa search.

Image files and changing extensions

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