I am trying to create a pdf document in c# using iTextSharp 5.0.6. I want to add header and footer to every page in OnStartPage and OnEndPage events respectively.
In case of footer there is a problem that the footer is created right where the page ends whereas I would like to be at the bottom of page.
Is there a way in iTextSharp to specify page height so that footer is always created at the bottom.
Thanks!
The page's height is always defined:
document.PageSize.Height // document.getPageSize().getHeight() in Java
Keep in mind that in PDF 0,0 is the lower left corner, and coordinates increase as you go right and UP.
Within a PdfPageEvent you need to use absolute coordinates. It sounds like you're either getting the current Y from the document, or Just Drawing Stuff at the current location. Don't do that.
Also, if you want to use the same exact footer on every page, you can draw everything into a PdfTemplate, then draw that template into the various pages on which you want it.
PdfTemplate footerTmpl = writer.getDirectContent().createTemplate( 0, 0, pageWidth, footerHeight );
footerTmpl.setFontAndSize( someFont, someSize );
footerTmpl.setTextMatrix( x, y );
footer.showText("blah");
// etc
Then in your PdfPageEvent, you can just add footerTempl at the bottom of your page:
writer.getDirectContent().addTemplateSimple( footerTmpl, 0, 0 );
Even if most of your footer is the same, you can use this technique to save memory, execution time, and file size.
Furthermore, if you don't want to mess with PdfContentByte drawing commands directly, you can avoid them to some extent via ColumnText. There are several SO questions tagged with iText or iTextSharp dealing with that class. Poke around, you'll find them.
Related
I'm trying to edit a word document via code, just want to Insert two images, one on top left and another on top right of the first page... word.interop documentation states that Word.Range is used to position things.. but im having hard time wrapping my head around how this is used?? How do i specify "top left & Right of first page" Using Word.Range???
doc.InlineShapes.AddPicture(imagePath); which inserts images on top of the document, but dunno how to control position of it further
doc.InlineShapes.AddPicture(imagePath);
I Expect to have to be able to Specify location of images to be at top left and right of page 1.
.InlineShapes allows you to add inline shapes – shapes that are part of the textual flow.
These shapes are inserted at a range (a position within the text), not absolute coordinates within a page.
To add a shape that does not flow with text, use .Shapes.
I have working iTextsharp code for printing labels. Now the problem is, I have a requirement to print the labels in Continuous paper which i am not able to select in iTextsharp configuration (iTextSharp.text.PageSize.A4). Please advice how can i select the page size according to my current scenario.
Thanks
Your problem is related to PDF as a document format. In PDF, the content is distributed over different pages. You can define the size of such a page yourself. You mention iTextSharp.text.PageSize.A4, but you can define the page size as a Rectangle object yourself. See iTextsharp landscape document
If you want a long, narrow page, you could define the page size like this:
Document Doc = new Document(new Rectangle(595f, 14400f));
There are some implementation limits though. The maximum height or width of a page is 14,400 user units. See the blog post Help, I only see blank pages in my PDF!
However, I am pretty sure that you don't want to create a long narrow page. If you want to print labels on "continuous paper", you want to create a PDF document in which every page has the size of exactly one label. Your PDF will have as many pages as there are labels.
Suppose that the size of one label is 5 by 2 inch (width: 12.7cm; height: 5.08cm), then you should create a document like this:
Document Doc = new Document(new Rectangle(360, 144));
And you should make sure that all the content of a label fits on a single page. Your label printer should know that each page in the PDF should be printed on a separate label.
(Thank you #amedeeVanGasse for correcting my initial answer.)
I have an existing PDF in which i am trying to add a logo in Header, I have found a good example from
How can I insert an image with iTextSharp in an existing PDF?
It is adding logo in Footer passing 0,0 in image.SetAbsolutePosition(100, 100);
but i want to add logo in Header. If anyone know about it, please suggest.
Are you creating the document from scratch?
If so,
you know the dimensions of the page. It's PageSize.A4 by default, or whatever Rectangle you passed to the Document constructor. You need to adjust the X and Y values depending on the value of that Rectangle. For instance:
image.setAbsolutePosition(rect.Left, rect.Top - image.ScaledHeight);
Where rect is the page size.
As you're adding a header, you want this header to appear on each page, hence you'll use a page event. Take a look at the OnEndPage() method in this example. Make sure you don't add the image bytes as many times as there are pages! Create the image instance outside the onEndPage method, for instance in the constructor of your page event implementation.
If not, you need to get the CropBox of every page:
rect = reader.GetCropBox(page);
If no CropBox was defined, you need to get the MediaBox:
rect = reader.GetPageSize(page);
Where page is a page number (e.g. 1). Based on the value of rect, you can define the position of the image, as shown above.
I hope you understand that your code where you've used x = 0 and y = 0 won't always show the image in the footer. You're making the assumption that the lower-left corner of each page in each PDF has the coordinate (0, 0). That assumption is wrong!
I am currently working with iTextSharp. I get some polygon cordinates from a file (location of each significant point) and trying to draw them in PDF. It is working great but problem is that the shape is always in bottom left corner on a page. It looks like this:
I don't want to change my data (it will be difficult and very problematic due to fact that I want to copy this shape 4 times on page) but I want to set local coordinate system in some place and then start drawing. Any ideas? Maybe another PDF C# library?
The problem was resolved by code:
PdfTemplate tp = cb.CreateTemplate(width, height);
tp.MoveTo(oStartPoly.dStartX, oStartPoly.dStartY);
etc...
than you do like so:
cb.AddTemplate(tp, fScaleFactor, 0, 0, fScaleFactor, fX, doc.PageSize.Height / 3);
Within this method you can scale and set absolute location.
The only problem is that line width is scaled too.
I'm writing a web application to generate labels. The label printer that I'm targeting utilizes 12mm tape and the customer specified that they want to limit the labels to 3.25". I know that with iTextSharp I can specify the size of the document I want to create, however it appears that I have to specify both a width and height.
Document document = new Document(new iTextSharp.text.Rectangle(234f, 33.84f));
234 is 3.25" converted to points, and 33.84 is 12mm converted to points, so this sets the document to the maximum size allowed. Is there any way to set just the height and let the document auto-expand to the amount of content? With that, is there a way to determine if the expanded width of the document exceeds to maximum allowed by the customer? Thanks in advance for any help you can offer.
No, that is not possible in iText. It's not a particularly good idea anywhere else either. As Redman said, PDF is a print-based format. It's not HTML.
There are some tricks you can do to get around this to some extent:
Create your page with the maximum legal height. 200" * 72dpi = 14400 points.
Add a "generic tag" to your paragraphs.
create a tag event handler that tracks where the bottom of your last paragraph was drawn.
Save the PDF.
Open it again with a PDFStamper
Set the bottom of the page to match the location of that last paragraph. Remember that the bottom left starts off at 0,0, and the top right will be
Save the final PDF
This trick will only work if your total output is less that 200" high. If you go over that, you'll still get a second page, and your "where the bottom is" code had better be prepared for it.
PS: I don't see what's wrong with having a number of 12mm x 3.25" pages... won't that perfectly fit the labels they want printed?
As far as I know, because PDF is a print format, the document width and height must be set.
This is why reporting tools generally default page sizes to the default printer page size.
You best bet to try and calculate the size of the content and create the PDF accordingly.
Depending on the volume and nature of the workflow, you could provide a preview for the customer to check before printing.