pdfbox

问题 I am currently working in extracting text from pdf. my current issue is in distinguishing the headings and sub-headings from the extracted text. I am working with iTextSharp and using the bold text information to detect the heading. The font size cannot be trusted all the time. also tried with PDFBox. 1)I would like to know is there any method to identify headings and sub-headings from PDF. 2)Is adobe or pdfExchange editor provide any API for the same? For example: I need to extract "Tourism

问题 I tried to read an existing PDF document through PDFBox , extract the Tj operator and then change the spacing between words (Tw), characters (Tc), the horizontal spacing (Tz) in order to generate the modified document. My problem is when i edit the modified document to read the modified file structure, the values of Tc, Tw, Tz operators are changed. What is the solution to prevent this change? let us consider this code: public static void main(String[] args) throws IOException,

问题 We are using PDFBox to do some PDF reading and manipulations. But during the parsing, I get a bunch of messages like this one: Changing font on <m> from <Arial Bold> to the default font Now how can I disable these? Because a message like this is output on EVERY character of the input if the font is embedded and the log files therefore become pretty unusable. Now changing the overall log level is not an option, because I need the statements from other components. I am using Tomcat 5.5, log4j 1

问题 I'm currently trying to generate PDF with PDFBox for some manual cover and I was wondering if it was possible to take a precise zone of text in my PDF and move it (to the left) depending on my manuel thickness (which will be determined by the number of pages my manual will have) I manage to create my PDF just fine, but I did not find a way to get only a block of text. Is it possible to do so with PDFBox? Note : I tried to search on the web and on other questions, but none of them were useful.

问题 As a newbie of pdfbox user, I plan to extract data in a table, but tables with special formats, say with merged column headers should be processed with the help of table's borderlines. Therefore, the coordinates of the text and at least the table's horizontal borderlines should be extracted. In order to extract the text from the table, I used PDFTextStripper to get the list of TextPosition objects; in order to extract the horizontal lines from the same page, I used PDFGraphicsStreamEngine to

问题 I've create pdf with pdfbox (using PDResources, PDXObjectForm, PDAppearanceDictionary and so on). I have Visible signature on pdf. when I see the pdf, I have missed some stream. 4 0 obj <</Type /XObject//Resources <</ProcSet [/PDF /Text /ImageB /ImageC /ImageI]/XObject <</n0 9 0 R/n1 10 0 R>>>>/BBox [0 0 100 100]/FormType 1/Length 11 0 R>> stream endstream endobj 8 0 obj <</Type /XObject/Subtype /Form/Resources <</XObject <</FRM0 4 0 R >>/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]>>/BBox [0

问题 I am trying to extract images from a pdf . pdfbox is able to extract images from most of the pdfs but their are some pdfs whose images are not getting extracted by pdfbox. For extracting the image I am using following code : Not able to extract images from PDFA1-a format document You can download a sample pdf with this problem from this link : http://myslams.com/test/2.pdf is their something wrong the code maybe something I forgot to handle or is their something wrong with the pdf all

问题 I want to implement functionality to draw cloud on the boundary of a rectangle using pdfbox 1.8.2 c# wrapper.I am able to draw a single semi circle using the code mentioned in this link. But the problem is that, I am able to draw only a single semi circle. It doesn't work when I try to draw multiple adjacent semi circles. Below is the code that I am using. (createSmallArc() is by Hans Muller, license: Creative Commons Attribution 3.0. Changes made: implemented original AS code into java.

问题 PDFBox problem on extract images. Hi, how I can check if pdf page is image and to extract that by PDFBOX library, there is a method to get images but if PDF Page is a Image it is not getting. could some one help me to solve this problem. Xpdf problem on extract images. I try to extract images by another library xpdf it do strange flip on the page if it is a image. If pdf contain an small image as object image it give me ok, if page is scanned he us doing flip. I want to extract the all Images

问题 I'm trying to use either Apache POI and PDFBox by themselves, or within the context of Apache Tika, to extract and process plain text from MASSIVE Microsoft Office and PDF files (i.e. hundreds of megs in some cases). Also, my application is multi-threaded, so I will be parsing many of these large files concurrently. At that scale, I MUST work with the files in a streaming manner. It's not an option to hold an entire file in main memory at any step along the way. I have seen many source code