With itext7 in VB.NET i create a PDF.
There I have this code-snippet:
Dim img As New Image(ImageDataFactory.Create(imagePath))
img.SetWidth(varImgWidth)
img.SetHeight(varImgHeight)
img.SetFixedPosition(100,100)
doc.add(img)
doc.add(new Paragraph("This is a test"))
The set position of the image overlaps with the text of the parapgraph. I expected, that the image is set to the document at the given position and then - afterwards - the text is "printed" above the image, because it is defined "after" the image in the code.
But what I see is, that the image positioned with SetFiexedPosition is always above other elements. I get the behaviour when positioning a text via SetFixedPosition on the Paragraph containing the text.
My question is: Is there any possibility to tell the element which is positioned, that it should be behind other elements.
Or - better question - is there any "positioning possibility" which allows a positioning of an element and considering the "order" in which it is "printed" in the code.
Do you understand what I mean?
(Sorry, it´s not easy for me to express it in English)
Thank you for any help
Regards
Benjamin
Related
I am creating a pdf-document. First I add a table and some Texts to the PdfWriter. Now I want to add a costum template (including images and texts): I have to get the direct Content, which ist a layer over the PdfWriter-layer:
over= PdfWriter.getDirectContent();
I want to set the template exactly after the content on PdfWriter-layer.
I can use
writer.getVerticalPosition(true)
for my calculation of y-Position on PdfWriter-layer.
This way I can add the costum template to the upper layer at that position. Now back to PdfWriter-layer how can I set the position of PdfWriter-layer after the tempalte on over-layer?!
Can somebody help?
Thanks in advance.
Mixing content added with document.add() and direct content us always a delicate operation. You need to know the height of the custom template and then add some white space that matches that height. However: what are you going to do if the content of the custom template doesn't match the page?
I would advise against your plans, and I would recommend another approach.
I am assuming that your custom template is a PdfTemplate object. In that case, you can wrap this object inside an Image object, and use document.add() to add the template.
See for instance: Changing Font on PDF Rotated Text
In this example, we create a PdfTemplate with a bar code and some text:
PdfTemplate template = canvas.createTemplate(rect.getWidth(), rect.getHeight() + 10);
ColumnText.showTextAligned(template, Element.ALIGN_LEFT,
new Phrase("DARK GRAY", regular), 0, rect.getHeight() + 2, 0);
barcode.placeBarcode(template, BaseColor.BLACK, BaseColor.BLACK);
We want to add this template to a document with document.add(), so we wrap the template inside an Image object:
Image image = Image.getInstance(template);
We can now add this image to the document:
document.add(image);
Afterwards, we can add extra content:
Paragraph p3 = new Paragraph("SMALL", regular);
p3.setAlignment(Element.ALIGN_CENTER);
document.add(p3);
That content is added under the template at the right position. You don't need to worry anymore about getting the Y position with getVerticalPosition() and you don't need to worry about setting the Y position after adding the template. If the template doesn't fit on the current page, it will automatically be moved to the next page.
Important: Maybe you are worried about the resolution of your template. You shouldn't be. If the template consists of vector data, wrapping that data inside an Image object won't change it into raster data. The vector data will be preserved. This is important in the bar code example, because you don't want the quality of your bar code to deteriorate by making it a raster image.
I am using IText library. I am using Paragraph in it cause the text is running and may be larger then one page. My problem is that I have to give paragraph starting positioning and I am unable to see any method regarding positioning it. Any help?
Something like that
page 2 is new page.... And this is whole one paragraph. I have starting coordinate of paragraph.
As explained in the comment section, you need ColumnText to achieve what you want. See for instance the MovieColumns1 example. You add text to a ColumnText instance with the addText() method. Then you set some parameters, such as the coordinates of the rectangle defining the absolute positions. This is done with the setSimpleColumn() method. To draw the text, you invoke the go() method. If the text didn't fit in the rectangle, ColumnText.hasMoreText(status) will return true, in which case, you trigger newPage(), define a new rectangle, change the Y position, and go() again as long as the column contains content.
All of this is explained in the documentation of which I'm the author. Reading the documentation saves time: your time as well as the time of the people on StackOverflow.
You could try searching for the first occurrence of a line break or carriage return, ie: Chr(13) and Chr(20).
I created a .PDF file using Adobe Acrobat Pro. The file has several text fields. Using iTextSharp, I'm able to populate all the fields and mail out the .PDF.
One thing is bugging me - some of the next will not "fit" in the textbox. In Adobe, if I type more that the allocated height, the scroll bar kicks in - this happens when font size is NOT set to auto and multi-line is allowed.
However, when I attempt to set the following properties:
//qSize is float and set to 15;
//auto size of font is not being set here.
pdfFormFields.SetFieldProperty("notification_desc", "textsize", qSize, null);
// set multiline
pdfFormFields.SetFieldProperty("notification_desc", "setfflags", PdfFormField.FF_MULTILINE, null);
//fill the field
pdfFormFields.SetField("notification_desc", complaintinfo.OWNER_DESC);
However upon compilation and after stamping, the scroll bar does not appear in the final .PDF.
I'm not sure if this is the right thing to do. I'm thinking that perhaps I should create a table and flood it with the the text but the documentation makes little or no reference to scroll bars....
When you flatten a document, you remove all interactivity. Expecting working scroll bars on a flattened form, is similar to expecting working scroll bars on printed paper. That's why you don't get a lot of response to your question: it's kind of absurd.
When you fill out a rectangle with text, all text that doesn't fit will be omitted. That's why some people set the font size to 0. In this case, the font size will be adapted to make the text fit. I don't know if that's an option for you as you clearly state that the font size must be 15 pt.
If you can't change the font size, you shouldn't expect the AcroForm form field to adapt itself to the content. ISO-32000-1 is clear about that: the coordinates of a text field are fixed.
Your only alternative is to take control over how iText should fill the field. I made an example showing how to do this in the context of my book: MovieAds.java/MovieAds.cs. In this example, I ask the field for its coordinates:
AcroFields.FieldPosition f = form.GetFieldPositions(TEXT)[0];
This object gives you the page number f.page and a Rectangle f.position. You can use these variables in combination with ColumnText to add the content exactly the way you want to (and to check if all content has been added).
I hope you understand that:
it's only normal that there are no scroll bars on a flattened form,
the standard way of filling out fields clips content that doesn't fit,
you need to do more programming if you want a custom result.
For more info: please consult "iText in Action - Second Edition".
I am currently working with Itextsharp and I have some trouble with PDfPtables.
Sometimes they get too big for a page and, when added to a document, are broken up on multiple pages.
Sadly ths rational behviour is not acceptable for some of my superiors - they keep insisting that the table shall be "shrunk" to a page. Is there a way to achieve this? There are some tantalizing hints that i could be possible - but hints are all that i have.
What is the alternative? Perhaps I could delete the fat table from the document and build the table again with smaller Fonts and Cells, but that would be very cumberosme - I would prefer to "zoom out", in lack of a better word.
My current code:
Dim test As PdfContentByte = mywriter.DirectContent
Dim templ = test.CreateTemplate(mywriter.PageSize.Width, mywriter.PageSize.Height)
Table.WriteSelectedRows(0, Table.Rows.Count - 1, 0.0F, mywriter.PageSize.Height, templ)
Dim myimage = Image.GetInstance(templ)
' myimage.ScaleAbsolute(mywriter.PageSize.Width, mywriter.PageSize.Height)
would scaleabsolute be necessary?
myimage.SetAbsolutePosition(0, 0)
test.AddImage(myimage)
This code puts something one the page, but it has the height of the page and the width is about a quarter of the page - wi will try to find the bug...
Create the table and define a 'total width'. As soon as iText knows the width of the table, you can calculate the height of all the rows. Once you know the height, you can check:
Does the table fit the page? Just add it as is. Maybe using WriteSelectedRows if you don't want to take any page margins into account.
Isn't there enough space on the page? Add the table to a PdfTemplate (there's more than one way to do this), wrap the PdfTemplate inside an Image. Scale the image, and add it to the document.
I have not been able to find any indicator which could tell me whether text in txBody tag is bulleted or not, can you please me in identifying which indicator should I use to understand whether the text is bulleted or plain ?
-Thank you
Inside the txBody tag, you can look for the tags "a:buFont" and "buChar" which helps you identify that the text is bulleted. eg.
<a:buFont typeface="Arial" pitchFamily="34" charset="0"/>
<a:buChar char="•"/>
Update:
Hi, +1 For posting this question, learnt a lot from it.
After googling I found this link which addresses similar issue, the resoponse from Adamm clears this,
"Ok, so i think ive got this figured out. Basically if no formatting
is specified in the layout or the slide, it goes to the master, and if
its a 'title' or 'ctrTitle' shape it uses the formatting in
and it defaults to lvl1. Same goes for text that is not
in a title shape, for these it defaults to the formatting in
and if no lvl is specified it defaults to lvl1. And
another piece of advice, although not pertinent to my original
question, there is another txStyle in the slideMaster,
which is used for text in a shape that is not in a txBody."
Now the slide in your pptx is using "Office Theme" and the text you are interested in is in the format shape within the slide design. The bulletted text is inheriting from the slideMaster1.xml in SlideMasters.
As mentioned in the above quote the buletted text is getting inherited from "a:lvl1pPr" of "p:bodyStyle" in the slideMaster1.xml, also you can see the level 2 bullet is defaulted to "-" for the office Theme slide master there.
I tried to confirm this by changing the char = "•" to ">" to see the bulleting changed to ">" in the below line
<p:bodyStyle>
<a:lvl1pPr marL="342900" indent="-342900" algn="l" defTabSz="914400" rtl="0" eaLnBrk="1" latinLnBrk="0" hangingPunct="1">
<a:spcBef>
<a:spcPct val="20000"/>
</a:spcBef>
<a:buFont typeface="Arial" pitchFamily="34" charset="0"/>
<a:buChar char="•"/>
....
Now if you want to change it programatically you can do this from slide master 1. But the only problem here is When we change the bulletted style here(like above), it is changing for all the slides and also for the future slides you will be creating with the same theme within your ppt.
Hope this helps.
Regards.