I have a pdf file which includes graphs, not in image format. Is there any way to process pdf file using content streams and fetch graphs out of it
Related
I have a pdf which is layered when trying to read the PDF file it is just reading the header of the PDF and footer of the PDF. I am looking for a library which can read the layered PDF.
Please guide.
The use of xfa inside pdf isn’t only for creating forms
Short : I need valid test cases for a new xfa ᴘᴅꜰ reader, but couldn’t found anyone nor I could find how to use ghostscript in order to create such test cases in batch.
The point is I don’t know how to build the extra information ghostscript should handle without an hex editor.
Ghostscript doesn't handle XFA at all, neither on input nor in output, you cannot use Ghostscript to create XFA files.
Nor does Ghostscript (currently) create PDF files which solely consist of an image. Even if it did, these wouldn't be PNG or TIFF images, as those file formats are not directly supported by PDF. The next release of Ghostscript will contain devices which produce PDF files where the content is a rendered bitmap image created from the input. But they won't be either PNG or TIFF file format.
Note that XFA has been removed from the PDF 2.0 specification (hardly surprising as its XML not PDF format).
I have a program that outputs a PDF file using PDFBox (It merges a bunch of PDFs using PDFMergerUtility).
I need to use Acrobat 5 to read that PDF, but in some pages i get Error proccesing page. A drawing error ocurred.
I cant update my acrobat so, there is a way to downgrade the PDF using PDFbox?
We have pdf documents (source: camera or scanner) that we want to convert to jpeg.
We use LEADTOOLS and PDF-TOOLS(in two separate programs) to convert these pdf files to jpeg files.
Both these tools use the default DPI of 150 irrespective of the DPI of the source pdf file.
We would rather like this value to be taken from the source pdf file.
For example: Adobe Acrobat software recognizes the source pdf file DPI and uses the same to create the jpeg file.
Is there some way we could achieve the same using the LEADTOOLS and PDF-TOOLS by determining the DPI of the source pdf file?
This feature was added to v19 of LEADTOOLS a few months ago. You can now extract images from PDF pages while preserving their original pixel dimensions using the following members of the Leadtools.Pdf.PDFDocument class:
ParseDocumentStructure method.
Images property.
DecodeImage method.
Furthermore, if the image is stretched inside the PDF page, you can detect that by examining its display size in the PDF page using the Leadtools.Pdf.PDFObject.Bounds property.
There's a dedicated demo for the PDFDocument class and related objects installed with LEADTOOLS 19 in these folders:
Examples\DotNet\CS\PDFDocumentDemo
Examples\DotNet\VB\PDFDocumentDemo
I want to use MigraDoc/PdfSharp to create and store PDF documents.
Is there a way to show these documents in an application on-screen? I'd like to show the print in my program rather than starting Acrobat Reader with the document name.
I considered storing the print using XPS instead of PDF, but then I'd need to way to convert XPS to PDF for mailing it to customers. And I don't want to save the same print in two formats for space reasons.
MigraDoc can save files in its own format "MigraDoc DDL". You can preview MDDDL on the screen, create PDF or RTF from it or print it.
Disadvantage: images are not included in the MDDDL file (OTOH this can be an advantage as images can be shared between several documents).
You can ZIP document plus images for storage.
PDFsharp can create PDF files from XPS (but this is in a beta state and not fully operational).