I'm trying to write a eBook, for the iPhone, using PDF format.
The problem is, I can't create a PDF with 5 cm x 5 cm (example).
I've tried Adobe Acrobat Pro 9. Didn't work, since it is not possible to custom the paper size.
I've tried Pages 08, but it's also not possible (it's possible to set the custom size, but it doesn't work, might be a bug).
I've tried Microsoft Word. The generated PDF is a mess... Doesn't work right.
So.. I can't create a PDF, with a custom paper size. This is nuts... There must be a tool or something that works right.
Anyone knows any tool that works well?
Thanks
On the Mac (since the underlying drawing system Quartz is based on the same ancestor as PDF), you can always generate PDFs by doing Print->Save as PDF...
This generally gives good results.
I have only a suggestion, but maybe open office?
Given that the iPhone resolution is 320 x 360px with a resolution of 163ppi we need to optimise print settings before exporting our document to PDF. I’m tipping most people will view their document with the iphone orientated in landscape mode so we’ll base our document width on 360px.
So here’s the settings you need to use when exporting or printing your document to PDF:
Width: 125mm x 225mm.
That’s it. Now just print your document to PDF using a PDF printer driver like doPDF and email the document to your iPhone.
Have a look at latex. You can typeset the document to any size that you want. http://www.latex-project.org/
Related
I'm trying to use tesseract from command line to run OCR on the content of an opened window. In particular I'm willing to read the text typed into a current opened Notepad window.
I've read the documentation and the wiki here: http://code.google.com/p/tesseract-ocr/w/list
but I didn't find anything that helped me in this project, further more I've also searched here for similar questions ( there are many about OCR) but nothing seems to work/ be applicable in my case.
Is it feasible?
I'm mainly a PHP coder (coding just for fun) and have no experience in non-web languages.
Thanks in advance.
Tesseract is designed to take a TIFF image as input and know nothing about the Windows or screen Device Contexts. So you would need to add code to locate the windows handle for the Notepad window , perform a screen capture and clip the window based on the current window size reported by Windows and save the resulting image to a file. This image will most likely be black and white which will make it easier to OCR as I suspect Tesseract 2.0 only works with B/W Images. The next problem will be Tesseract gving poor results due to the low DPI (resolution) of the source image.
To evaluate the suitability of your approach I would perform some manual tests by opening Notepad, taking screenshots, opening the screenshots in MSPaint, clipping the text you want to OCR, save the clipped image to a TIFF or BMP and send this file to Tesseract. This could save you a lot of time and effort if the results are not as good as you need or expect.
I'm going to creat an iOS app from UI design to implementation, I want to make my app looks better, so i googled a lot and find people saying to create a PSD file with your app views first, so here comes to my question:
1) If i had that PSD file, how do i use it in my app?
2) Is there a general way to use that PSD file for all the elements I created?
Thank you very much.
The PSD File contains your photoshop readable source material and cannot be used in your iOS application. You have to export / save your PDF files save a PNG or jpeg to use it.
You can export the PSD elements to XCode using a photoshop script. this is easy and simple. All you need to do is follow the steps and it will import the files to your .storyboard file.
PSD to Xcode Script by TampestVision
You will need to do some slicing, i.e. divide the interface described in the PSD into smaller PNG images.
You will probably need
The designer who made the PSD.
Adobe Photoshop.
These are the broad steps that you need to take.
The designer needs to tell you what each element of his design is supposed to do.
As a developer you will need to decide how each element is going into your app (Button, Label, image, table)
Pick out the components you need for each element (outline, fill, shadow, etc)
Choose the corresponding layers,in the PSD, to those components.
save those layers for web(Choose PNG-24, keep transparency)
I am doing something like extracting the pdf text in a string format so as to annotate the text and in the same process i need to find the image positions covered in the same pdf file so as to maintain its position. Now the problem is that i am not getting the exact positions of the images in the same pdf file. Is it possible to use some thing like OCR,if yes,how to use that?
Can anybody help me in finding the exact position of the image in the pdf file? I need to implement some pdf reader kind of application for ipad,that's just for the knowledge.
Thank you.
Isn't OCR a little bit heavy weight for iphone?
Take look on tools like pdftotext from Xpdf. It is much simpler to read data, as to render and recognize it back again.
Does anyone know how to use core graphics to draw a pdf like in iBooks. I can already draw a pdf page using core graphics but was curious how iBooks shows a lower quality view of each page so it loads fast and then when you stay on a page longer it renders it a full quality. This makes it able to open the pdf without having to make the user wait like most magazine apps you see on ipad. Any ideas would help!
Apple have some "ZoomingPDFViewer" sample code:
http://developer.apple.com/library/ios/#samplecode/ZoomingPDFViewer/Introduction/Intro.html#//apple_ref/doc/uid/DTS40010281
I suspect that might give you some good ideas :-)
I assume they use multiple layers, the first layer loads the pdf in low resolution and the better resolution is prepared in the background. When ready these layers are swapped.
Have a look at CGPDFDocumentRef and CATiledLayer in the documentation.
In my iPad application I want to add signature in my pdf file.
I already do perform following steps:
Open pdf in UIView (zooming is not implemented yet).
Add one transparent subview (UIImageView) and draw signature on that.
Save all screen using UIGraphicsGetImageFromCurrentImageContext() as a image.
Convert and save the image as a pdf.
This is works fine but pdf quality is very poor.
But now I want to add a signature/image as a pdf metadata. Same as a markup and commenting features of PDF.
Is there any help or sample code is available for the same?
It should be possible to improve the quality of the output by skipping the image/pdf conversion, but afaik there's no lib that will help you editing the metadata of a pdf on the iPad (at least, none that's freely available).
Depending on what exactly you want to do, you may have to write a parser from scratch to know what exactly you have to append to your document to see the wanted effect:
It is very easy to append data to a pdf, but it has to be "registered" in the right locations so that a reader can use this information.