I use OpenPDF to generate a PDF from a Spring Boot application. Everything works fine when I use French or English alphabets, but when I write in Arabic nothing is displayed.
I read that I have to use the Unicode form for the Arabic words. For example, the Arabic word الاسم converted to its Unicode form gives the following string:
\u0627\u0644\u0627\u0633\u0645
So I am wondering whether there is any way to convert Arabic words to Unicode in Java, and could I use that approach with OpenPDF? Or is there any alternative way to write Arabic in a PDF using OpenPDF and Java 17/Spring Boot?
This example of writing Arabic text to a PDF using OpenPDF solves my problem. (RightToLeft.java in the OpenPDF documentation.)
The main idea is to create a BaseFont that supports Arabic text, as shown on line 51:
BaseFont bf = BaseFont.createFont("c:\\windows\\fonts\\times.ttf", BaseFont.IDENTITY_H, true);
You can replace that .ttf file supporting Arabic text with your own file. You put it in the resources folder, and name it like this: src/main/resources/youTtfFile.ttf.
You also need to specify right to left (RTL) directionality, as shown on line 61:
ct.setRunDirection(PdfWriter.RUN_DIRECTION_RTL);
Related
I'm using iText in my Java application to replace a certain string in a PDF document. I noticed extra symbols appear when the original font used in the PDF doc was Arial Narrow.
As you can see in the example below, the string ##[PORTFOLIO-123456789] was replaced with the string vlopezbo. It worked just fine when the font was Arial or Futura. However, in the case of Arial Narrow, extra square-like symbols where added to the right after the replacement. Trying to figure out why?
Please notice square symbols on the right
I am having a Whatsapp chat txt file inside of which emojis have been replaced by such text------> "���"
I want to convert that text to specifics emojis. How can I do that and use it inside a java application?
As #Abhishek pointed out, you need to use a different type of encoding. Whatsapp does backup with UTF-8 converting the emoticons into string representations. If you want to see the real emoji, you will have to use Unicode instead. Unicode contains sections which specify emoji as "characters". They're regular characters, you only need a font which can display them. Also see the Unicode Emoji FAQ.
In a text file, characters are basically encoded as numbers in the form of bytes. To display those visually on a computer screen you need a font which contains the visual glyph to render this character. Since the process is always numeric identifier → font → visible glyph, it should be pretty obvious that a "character" can be anything visual, including emoji or any other image.
Maybe all you need is a a font which contains the visual glyph to render these characters. See this for reference.
I'm creating a chat like application with SWT. My application uses StyledText and Text for taking input and displaying it to user. Is there a way I can insert emoticons (images) into the text field?
There are Unicode characters for Emoticons (starting with Unicode 6.0) so you don't need to use images for this provided you have a font which supports them 😀
The Unicode characters are in the range U+1F600..U+1F64F, more information on the characters see here
I'm working in java webdynpro. I've created a PDF with iText but not all character are shown in the pdf.
In my case I want to fill the field TextField17Place in my pdf with the value: D'entrée.
form.setField("TextField17Place", StandLocationString);
After creating the pdf, the field is filled but without the single quote.
Result: Dentrée
Do I need to implement a new font or is there a special code provided for single quote?
i have a java applet application in which i use rich text area . i write URDU the national language of PAKISTAN. i managed to do so with uni codes. the problem is, when i write urdu in text area and select a font and color for each line it do all of this but when i save this file using UTF-8 encoding and then open it again it shows all text formatted as i choose format of last line.
my requirement is to open file as it is saved. i mean each file should have same formatting as i done before saving.
I'm still suffering with this problem even after bounty can any one help! dated 07-06-2010.
See, when you actually format text using some font and color, it will generate some RTF/HTML code right? You should try to get the RTF/HTML of the text area so that all your formatting can be saved in a file.
Basically all its a text file, so you need to get it with all code right?
Check this link for RTF formatted text saving mechanism.
Java JTextPane RTF Save
Also check HTMLEditorKit for more info.
http://java.sun.com/j2se/1.4.2/docs/api/javax/swing/text/html/HTMLEditorKit.html
thanks.
UTF-8 is an assignment of codes to characters. For convenience a decision was made that the lowest 127 codes are the same in ASCII and UTF-8. For all characters the codes differ.
UTF-8 Fonts have a character map (cmap) which assigned unicode code to their glyphs. There are very few fonts that cover large portions of the unicode range (Arial Unicode and Gentium i know, there are some others), and to get full coverage in a rendering solution, you have to mix fonts.
To be able to display arbitray Unicode texts, you therefore have to create a set of fonts with one as the default font and fallback fonts for the unicode characters that are not contained the default font. Back to Java and your Textpane: If you select a font for a given part of text in your Textpane, this only means that to render the text glyph are used from the selected font. But the text itself is not associated with the font in any means.
So you have two options:
You don't just store the UTF-8 text,
but also information about the
selected font, or
more interesting:
You store the text simply as UTF-8
and apply fonts after loading the
text into your textpanel!