Using Linux for a year, I have found that some PDFs could not be rendered correctly by Evince; sometimes Evince could not function properly when the PDF file has many pages(slow to load & wait)
So I want to find some FOSS PDF Readers on Linux, built with other library rather than the one Evince uses, such as PDFium/PDF.js.(I do not want to use Browser as a PDF Reader).
What are the alternatives?
Have a look at https://pdfreaders.org/.
PDFium and PDF.js are Javascript solutions that need a browser, so you can't have one without the other.
I'm using Okular. It uses the same library as Evince (called poppler) but a different backend, so rendering is different for certain PDFs.
You could also try mupdf which has a completely different rendering engine.
Related
I am using App Engine Standard. Since ImageMagick is available on it, I tried a few PDF manipulation libraries and basically, what I would like to do, is simply converting a PDF into an image.
The issue I am getting is this:
'convert-im6.q16: not authorized /tmp/ygM1sF-Txq00JkGbpal8YWBQ.pdf\'
# error/constitute.c/ReadImage/412.\nconvert-im6.q16: no images
defined/tmp/ygM1sF-Txq00JkGbpal8YWBQ-0.png\' #
error/convert.c/ConvertImageCommand/3258.\n' }
After some research, I found out that post here: Fix for ImageMagick convert errors with pdf files. Here is what he says:
PDF files on Linux systems are usually handled by ghostscript (via the
terminal command gs). And, ImageMagick (done through the terminal
convert command) uses ghostscript for reading and writing PDF files.
Because the security problems are serious and numerous, ImageMagick’s
access to PDF files is then cut off.
Granted, through these security flaws in PDF someone could craft a
malicious image file that, when converted by ImageMagick into a PDF,
will then do very nasty things to your computer.
But, ghostscript has since been updated once and once again with
security fixes. How about a fix for ImageMagick to get PDF
functionality back? Or, at least an explanation of progress towards
fixing this issue?
I can't change the ImageMagick configuration on App Engine Standard, but I wonder if there is something else I can do. Or maybe the engineers at Google would be able to update ImageMagick instead and remove that limitation?
I really need to convert PDF into images, so I wonder if it worth waiting, or if I need to find another solution.
Thanks for your ideas.
I need to display excel files(xls, xlsx) in an iframe.
Is this possible? If so, how would I do this?
Can't really be done. Excel files do not display natively in a browser. iframes, in this context, are just like regular pages. You would have to solve the showing Excel files in a browser problem first.
The closest you could get is to have a program that reads the Excel file and then generates HTML based on its content.
Adobe ColdFusion can do this natively; other languages and platforms may require 3rd party libraries.
Other solution would be to convert the file to pdf and display it in the iframe.
is it possible to change text and images in a fla file without ever opening it up and then making the swf via command line? I want to make a flash template and save the fla. Then be able to update my text and image name and convert it to swf. I have one template but tons of different text options and background images. It would be nice to be able to copy the master.fla twenty times and just change the source code (will do this from command line) and then convert to swf (via command line).
Any help would be appreciated.
With CS5, you can do half of what you're asking today, by using the XFL file format instead of FLA. Instead of a binary blob, you get an editable XML file and a tree of separate asset files: PNGs, AS3 files, etc. You can then modify the XML or AS3 files programmatically to get your variants.
(A CS5 FLA file is really just a zipped up version of the XFL, but there's no advantage to using that instead of an XFL. In CS4 and previous, FLA was a proprietary binary format.)
The missing piece is an XFL compiler. Adobe currently provides no such thing, and the third party market hasn't yet produced one.
You could use a systems automation tool to drive the Flash Professional environment through the compilation steps. On OS X, for example, either Automator or AppleScript should be able to do what you want. It'll just have more overhead than the command line compiler you were hoping for.
I agree with Jason, there are a lot of alternatives to what you suggest. Keeping content out of the SWF is good practice actually. This is a good way to avoid large files!
Depending on what you 're looking to achieve, there are a lot of solutions available. XML is an option, JSON another.
If you're looking to build a template, any of the above would seem appropriate.
It sounds like you're working from the Flash IDE, as Jason suggests you may want to have a look at another IDE, such as FlashDevelop, FDT or FlashBuilder as they make coding with AS3 a lot easier.
I want to convert MicrosoftOffice Docs(.doc,.docx,ppt,xlsx,xls) +PDF+Images++Audio/Video into an swf file. The idea behind this project is to open the documents on any machine which have a flash plugin. I want to do this in VC++.
Use http://www.swftools.org/ (Open Source)
Makes SWF from PDF, images, video, sound.
To convert from office formats, you will probably need to first convert office files to PDF, and then PDF to SWF. There are many tools to do this, one of the best is OpenOffice in server mode (no user interface).
An example implementation is Alfresco Share (also Open Source), which uses swftools and OpenOffice to convert all sorts of files to SWF. Alfresco Share calls those external programs from Java, so you can call them from VC++ the same way.
The question probably sounds a little odd, but the actual task is relatively simple, I swear!
I'm automatically generating some PDFs from a webform, using PDFCreator to merge a generated FDF into a preexisting PDF. I created the preexisting PDF in NitroPDF. This setup works great - almost. The problem is that when you view the generated PDFs in Adobe Reader 9 (the most common reader) a subset of the fields are just blank. The information is still there; using previous versions of Adobe Reader or a different reader like Foxit Reader shows the entire PDF. No clue what's going on, and Adobe tech support was useless since I didn't create the PDF with Adobe software. (If you'd like to help fix this problem instead of the following, feel free to email me.)
However, if I take the resultant PDF and print it to a fresh PDF using a PDF printer driver, it works great everywhere. This is time-consuming and annoying for our sales department to do themselves, so I want to perform this step automagically upon creating the first PDF.
I'm in ubuntu, and have command-line root access to the server. The program is written in PHP, and can easily make system calls. I'm just having trouble figuring out how to tie things together properly so that I can automatically print a known file using a specific printer driver to another known file.
You could try putting your PDF files through Ghostscript. I have found that this is enough to fix many problematic PDFs.
gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=output.pdf input.pdf
(The same command can also be used to merge several PDF files into one, just specify multiple input files.)