I've programmed an uploadscript for uploading PDF files. Via PHP I want to check if the uploaded files are ready for print using the X3 standard. That means images and fonts has to be embedded into the file etc.
Unfortunately I don't know how to achieve my aim? Does anybody has some ideas that might help me?
I'm assuming you are referring to the ISO PDF/X-3 standard? Are you sure it has to be PDF/X-3 you need to check against? Most publishing workflows today use something based on either PDF/X-1a (the vast majority) or PDF/X-4 (up and coming).
How do you want the checking? There are a number of commercial libraries that allow you to PDF/X-3 checking (and other PDF preflight), do you want to use those or are you looking at implementing this yourself using some PHP library?
If you want to use an existing library, let me point you at pdfToolbox from callas (warning, I am affiliated with this company) which has a command-line version that is easily usable from PHP (I made such an implementation with Drupal). There are definitely other companies that have technology in this area too, Enfocus comes to mind.
If you want to use a PHP PDF library to do this, be aware that PDF/X-3 checking goes much further than having all images and fonts embedded. There are a lot of very subtle requirements you'll have to implement.
Related
I hope you are doing well.
I need to know about a PHP library that converts a PDF file having images as well to be converted in a HTML file with the following features that the library can do.
HTML file needs to be of version 3.2 compatible
Save the images in PDF file having .jpg extension
Correct font from PDF needs to be used in the HTML file.
A result folder that contains the images and html file in one folder
I have tried most of the PHP libraries but most of the PHP libraries are NOT doing my needed tasks.
Please, help let me know about a library that do all the above 4 requirements (image attached for reference)
Waiting for your kind responses.
Thanks
I am not very sure, But here is a library in PHP I found.
Here
Try this:
http://www.pdfaid.com/pdf-to-html.aspx
Or this:
http://webdesign.about.com/od/pdf/tp/tools-for-converting-pdf-to-html.htm
Or this...
http://www.pdfconvertonline.com/pdf-to-html-online.html
There are plenty of options available to you, the secret is to use a new fangled thing called a Search Engine, such as a Bing or a Google.
you will also do well to research on Stack Overflow before asking your question:
1) HTML 3.2 wes superceeded in 1997, this is very nearly twenty years ago, why on eart are you still needing a comparatively ancient technology when there are far better improvements available such as XML HTML, HTML 4.01 and HTML5.
2) Please read How can I extract embedded fonts from a PDF as valid font files?
3) Also to extract images you can use:
http://www.makeuseof.com/tag/extract-images-pdf-files-save-windows/
but again, there are several options available to you if you care to look for them.
You seem to imply a fundamental misunderstanding about HTML; there are several different ways of getting any desired result with HTML. You have a PDF file and you want it to look a certain way, this look depends on the browser you are looking at it on. For example if you use a PDF to HTML converter as linked above you will very probably find that the output will look different on Internet Explorer 7 versus on Firefox versus Internet Explorer 10. There is no one way of writing output on HTML or with CSS.
If you want a custom built library to do your specific task then you will need to employ a professional to do it, or you will need to code it yourself. This obviously should be charged to the client for requiring a technology that is extremely outdated. You can probably search github for a similar library (the one linked by CK Khan looks like what you're after) and then fork it and make your own variation for your needs. I very much doubt anyone is going to put time into developing a system to output HTML 3.2 from a PDF, and even less likely to develop this system for free and to your exact specifications.
It also appears that you can not directly incorporate font families into the <font> tag in HTML 3.2, only being able to edit size and colour of fonts. You can use CSS1 font-family to show font families. See here.
I developed a system that contains many MP3 files that users can listen to them online/stream, since most of my users are Iranians and Iran internet speed is sucks, I came up with an idea, but I can’t find the right/best way to do that.
I have alots of different berates: 128kps, 192kps, 320kps, etc… I would like to know what’s the best way to remotely convert these files to 32/64kps qualitie, and of course, temporarily.
I mean, after the new file 32kbps generated. After period of time the generated file automatically delete.
I did lots of search before I ask this question, but none of the results answered my question.
BTW, I find the LAME library.
Is there a way to do that with pure PHP?
Is there a way to do that with pure PHP?
Nope. Not at all. PHP is a server-side scripting language that depends on add-ons & external functions. That said, there is a SWFMovie::streamMP3 function, but as the page says, “This function is EXPERIMENTAL.”
You are much better off learning about MP3 streaming software like Mopidity which is a Python-based music server. Might also look into Andromeda which appears to be PHP-based. And such. Reinventing the wheel will not be fun at all. You are better off researching how to use Open Source MP3 streaming software as best as possible & adapt it for your needs.
I've used a couple of days to think of a best practice to generate a PDF, which end users can customize the layout for themselves. The PDF output needs to be saved on the server or sent back to the PHP file so the PHP file can save it, and the PHP file needs to know that it went OK.
I thought the best way to do this was to use XML, XSLT and Apache Cocoon. But I'm not sure if this is possible or if it's a good idea since I can't find any information of people doing anything similar. It cannot be an uncommon problem.
The idea came when I read about Cocoon converting XML through XSLT to PDF:
http://cocoon.apache.org/2.1/howto/howto-html-pdf-publishing.html
and being able to take in variables:
http://old.nabble.com/how-to-access-post-parameters-from-sitemap-td31478752.html
This is what I had in mind:
A php file gets called by a user, the php file generates a source XML file with a specific name
The php file then makes a request to Cocoon (on the same web server) to apply the user defined XSLT on the XML file. A parameter will be needed here to know which XSLT to apply.
The request is handled by the PHP file and then saved as a PDF on the server, and can later be mailed away.
Will this work at all? Is there a better way to handle this?
The core problem is that the users need to be able to customize the layout on the PDFs themselves, and I need the server to save the PDF and to mail it later on. The users will use it for order confirmations, invoices, etc. And I wouldn't like to hard code the layout for each user.
I've had some good results in the past by setting up JasperReports Server and creating reports using iReport Designer. They're both available in F/OSS ("community") editions, though you can pay for support and value-adds if you need those things.
This was a good solution for us, since we could access it via the Java API for our Java system, and via SOAP for our PHP system. The GUI designer made tweaking reports very easy for non-technical business staff too.
I use webkithtml2pdf to generate my PDF:s. Just create a document with HTML and CSS for printing like you would usually do, the run it through the converter.
It works great for generating things like invoices. You can use SVG for logos and illustrations, and they will look great in print since they are vector based. Even rounded corners with dotted outlines works perfectly.
A minor gotcha is that the input html must have th htm or html file name suffix, so you can't use the default tempfile functions.
Actually I have to upload pdf files and need to read on my website as book reader like a presentation. Please show me the possible ways to achieve my goals.
Thank you
I've been using flexpaper, I use pdf2swf to convert the pdf to swf as I used the flash version but there is a javascript version too.
One possible solution would be to use scribd. You simply upload your document to their website and embed their reader on your website. This is the easiest way, and you get things like searchability. Their reader also works like Adobe's Acrobat Reader.
The downside is that you are uploading your documents onto a public website, so everyone will be able to view it. Perhaps they might have settings where you can lock your documents so that only certain people can see them.
The next solution is to roll your own. You can use turn.js. In this case, you will need to find a way to convert your PDF files to HTML files or perhaps image files. With images, your text won't be selectable, and they won't be discoverable by search engines. Again, converting PDF to HTML can also be difficult as you might lose formatting in the process.
But it is entirely up to your use case. Personally, I would go with scribd, as their platform works very well, and you won't have to worry about implementing your own system.
I'm working on a biology web based application and trying to figure out what language to use. The features I need to include are:
Image viewing frame - This area will display the current image that the biologists wish to see. The application needs to take in a number of coordinates from a file and draw those points on the image displayed here. When the biologist wishes to change images there needs to be no flickering from the refresh. Will do this using multiple image buffers probably. Content needs to be scrollable and able to be zoomed in.
There need to be labeled buttons that advance, step back, zoom, and play the images displaying in the image frame. There also needs to be some type of list view where images titles can be selected to be displayed.
There will be a bunch of folders of images on the server that can be selected from. The application must allow the user to select which folder of images to be loaded. It also must be able to read from either an txt or xml file and visually display the information there by way of line graph.
Would like to be able to run scripts on the server from the application.
I feel that all these things are doable by a web application but I have no idea what language to use. Most people recommend php, but i don't want to delve deeper until I know what its limitations are. Any suggestions are welcome. Thanks in advance.
-Mike
PHP can do everything you need for the back end, but most of the stuff that you describe is UI based, and this is dependent on the client, which is, of course, the browser. For highly graphical projects, you can do a lot in JavaScript and some JavaScript libraries have a lot of these capabilities built in. You might also consider Flash or Flex.
You might even consider a desktop application that runs outside of the browser. You can use Java, which is easy to deploy, but still requires the user to have the Java Runtime Engine, or you could go with a language that you can compile down to a native application.
Regardless of the front end technology that you choose, you'll still need a back end, and PHP can handle this.
You will find almost every server side platforms such as php , asp.net, asp, etc will do all of the above.
PHP is a language that resides on the server and handles all requests. Javascript (and associated libraries) is a language which is executed by the client's browser and handles (almost) all interaction. PHP is definitely able to do what you want, but for the interaction stuff (particularly the zoom, scrolling, etc.), you'll also need to use Javascript.
So, short answer, PHP is good, but you're going to need to use client-side scripting as well.
PHP is more than capable of doing this. You are going to need to use it in combination with some Javascript to handle the client side effects you describe. I would look into modifying galerific for your needs and then whip up some javascript to write points over the images.
From your concerns about image refresh/flicker, it really sounds like a desktop app is what you are looking for, for a rapid response on image changes. The requirements on this really seem to need to be defined better before you can choose a language... PHP can do all the server side stuff you mentioned, but you might have a harder time getting the image viewing "frame" to provide the functionality you want.
Due to the image manipulation requirements it might be easier to go with something like flash with a php backend or asp.net with silverlight. It might be difficult to prevent flicker and delays with using pure javascript as opposed to flash/silverlight.
Image viewing frame
This will most likely need to be done on the client side using tools/frameworks such as jQuery, the canvas element, silverlight, or any of the other 100's that are out there.
There need to be labeled buttons that advance, step back, zoom, and play the images displaying in the image frame. There also needs to be some type of list view where images titles can be selected to be displayed.
PHP or any other server-side scripting language could pull this off. If this is meant to be a quick project running on free/cheap hardware then PHP would be a good choice. If the plan is a large application that will have to be maintained over the course of many years and hosting/price is not an issue then I would suggest something like ASP.NET
There will be a bunch of folders of images on the server that can be selected from. The application must allow the user to select which folder of images to be loaded. It also must be able to read from either an txt or xml file and visually display the information there by way of line graph.
Again any server side language could do the folder listing portion. As for reading files and creating graphs, this would most likely be a combination of server side and client side programming. jQuery for example, has plugins that could quite easily take a xml file and create a line graph.
Would like to be able to run scripts on the server from the application.
PHP, ASP.NET - both could do this. I'm sure many others could, but these are the ones i use most often
The issue with PHP is that quite often, the code turns into a mess over time. This is maybe not so much an issue with the language as the people using it and the purpose the app was built for (a quick, one time project). Classic ASP also has the same issues.
ASP.NET is a good combination of OOP programming that allows you to separate presentation from logic with minimal effort.