I want to use PDFBox for convert pdf to images. I have following questions ->
Does PDFBox looks for executables and javascript while rendering
If it identifies executables, does it ignore the script/executable or it doesn't render at all?
Is there an official documentation where I can read about security related questions and how PDFBox rendering works?
Related
I am struggling to apply text redaction in a PDF file in a aws lambda function written in NodeJs. Here is a list of libraries that I have tried with no success:
pdf-lib: This library almost fulfils all the requirements except that it doesn't redact the text permanently as part of its limitations https://github.com/Hopding/pdf-lib/issues/827
PDF.js: To overcome the above limitation, tried to covert the pdf to an image, so the redaction black boxes are applied permanently. Example code here: https://github.com/mozilla/pdf.js/blob/master/examples/node/pdf2png/pdf2png.js However, this lib is not reliable as this cannot extract contents from most pdfs during the process.
Finally, Pdf2Pic: This library helps to overcome the limitation of the first library (pdf-lib) by the converting the pdf into images. But this library internally uses two non node based libraries (graphicsmagick and ghostscript) which I am trying to avoid.
Is there a nodejs based solution that can be used to apply redaction permanently on a pdf file or any solution that can be used to covert a pdf to images to overcome limitation of pdf-lib.
I'm developing a web page. I want to create an option to generate a .pdf file and allow the user to download it.
Currently I'm using jsPDF but I'm finding it very hard to properly format the document.
I was hoping to find a new way of building it in markdown format, compile it and then download it.
Is there a way that I can do this, in node.js, where say, I have a string in memory (which is the markdown text format), compile that into a pdf and then download it from the page?
I haven't found any package that really does this, if you know, feel free to just let me know which one can achieve this and I'll figure it out.
For such a thing, I recommend building your .pdf file first a HTML file, so you could edit it easily (hardcoded or dynamicaly)
then convert your html file to .pdf file.
there is alot of packages to do this
have a closer look on this package
https://www.npmjs.com/package/html-pdf-node
Does anybody knows how to create a structured report using dicom scope toolkit via console (ubuntu 16.04) with a link to a related image?
The thing is that I have an image of some kind of trauma and I have to connect with a report which is in a text file. The last file should be in .dcm format which contains annotation and a link to an image. I have to use dicom scope program.
Maybe others refrain from answering because your question needs a very long answer. I cannot provide step-by-step instructions, a few hints, though.
The way I would go is to:
(assuming that your image is available in DICOM format):
obtain a sample structured report. I think that the "simple" Basic Text SR is what you want to go for. You can find some samples here.
convert the SR to an XML file using dsr2xml
edit the contents in XML. Do not forget to include your image reference in (0040,a730) Content Sequence -> (0008,1199) Referenced SOP Sequence
convert the XML back to DICOM SR using xml2dsr
By the way: From your question, I did not really understand why you want to use a structured report, as you wrote that your report is plain text. Instead of digging into the complex structure of SR, you may want to consider exporting the report to an Encapsulated PDF document which can reference images as well.
Stuck in this weird situation at work. I have .doc files I'm parsing with Node.JS. They have photos in them that are .emf I want to display in my web app. I have no issue getting the emf file out of the word doc, but I can't figure out how to display it on a webpage. Simply embedding as is didn't work. I tried to find a utility to convert them automatically but with no luck. I thought of converting them myself but can't find any tecnhical info on the .emf file.
Any suggestions?
EMF (WMF) are the SVG like formats of the 1990's.
I can't give you the full solution in this space but checkout this thread that uses Apache Batik
If you don't want to build it yourself perhaps try the paid version of converters
If you can't afford I would recommend to host the Batik and make a service endpoint and make calls to generate the desired format from EMF. It may turn out actually faster.
I would like to write a command line program using Java that take in KML/Shapfile and output GeoJSON file.
What I usually did is go over ogre2ogre and manually convert my file.
Once I got the GeoJson I modified the content of it a little bit before output final GeoJSON.
I would like to skip the manual part and find some API that do the conversion for me.
Anyone could help please.
Thanks
OSMBonusPack provides a KML+GeoJSON toolkit, with both a KML parser/writer and a GeoJSON parser/writer, all in Java.
So this allows to read KML content, and write it as GeoJSON.
You can test this conversion using the demo app OSMNavigator.
It is targeting Android, so for your need you would have to pick the relevant classes, and remove code sections you don't need (icon loading, overlay building, Parcelable implementation, for instance).