I'm working on a webpage where people can either scan or manually enter their 6-digit QR code on this page. I designed it to have an input with 6 square boxes for people to enter their codes. Below is the code I have where I use Bootstrap form and just resized the columns to create smaller inputs.
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We've been successfully using GD::Barcode::QRcode to generate QR codes on the fly.
We now want to try to embed our small custom logo in every QR code we generate.
Is there a way to do that in Perl?
enter image description hereMy church has started using The Church App. Within the app, the user can input information that the app saves. It also gives the option to email that as a PDF to themselves.
In the attached image, the input box was used is in green. The input boxes that can be used are in blue. Can that be created in an ePub?
My Desktop App is creating a single page pdf with itextsharp library.There are 40 Passport size photos with names under it on a single page.
I need to flatten this pdf page (with 40 photos) as one Image while creating the pdf,currently there are 40 individual photos on the pdf page.I presume it would create around 80 layers by default which would take a very high time on ripping this file for printing on a press.
I dont want to make all the 40 images as one jpeg externally using GDI+ and then lay it in pdf.
I have seen many options using stamper and reading the created pdf file to flatten.Is there a way while creating the pdf i can create a flattened file.
Your understanding of flattening a PDF is completely wrong. The concept of flattening a PDF means: removing all interactivity. For instance: you have a PDF file with form fields. The content of these form fields can be changed in Adobe Reader. When you flatten such a form, you take away the form fields and replace the field content by actual content of the page. The result is a flat PDF in the sense that people can no longer change the content of the fields.
You presume that having multiple pictures on a single page in a PDF means that there are multiple layers in that PDF. Your understanding of layers in a PDF is completely wrong. Layers is a word that is used in many different contexts. For instance, when working with optional content groups (OCG), people often refer to layers.
The concept of layers as you may know it from Photoshop doesn't really exist in PDF. Content is added in a stream. Whatever content is added first, can be covered by content that comes after. You want to pro-process the content by removing all the content that isn't visible in the hope that the PDF will be printed faster. You want to achieve that by replacing many different image objects by one image.
Your assumption that this can be done with iText is wrong. iText doesn't convert PDF to an image. This is outside the scope of what iText is written for.
If you want to add X images as 1 single image using iText, then you have to process the X images into 1 single image before you add the images to the PDF. You need image manipulation software, because iText won't do what you're asking for.
I am filling pdf template using iText api. I am not able proper text in one textfield.
It has boxes like this image.I have to fill one character in each box. When I am trying to set value it taking whole value in initial 3 box only.
Can anybody guide me how can I achieve this ?
I find some iphone book apps have such feature:
One screen one page of text without scrolling. The text can just fit into the whole screen with linebreaks and indentations.
I'm curious of how to implement this. How could I decide the length of text that just fit into the screen. And also, given the whole text, I can calculate out the number of pages.
If this is not possible to be done on iPhone(runtime?), then is it possible to process the text before storing it in app? I mean I calculate how many pages I need(how to split the raw text), probably how many lines per page.
I think this is what you are looking for
iPhone SDK: How do you measure the width and height of a string using Quartz?
The accepted answer gives methods you can call on NSString to calculate sizes
What I did for TouchTomes' books was have two iPhone apps. One was the reader that showed up on the App Store. The other was a renderer that calculated what could fit on each page, that only needed to be run in the simulator to create a book DB that the reader could use.
It would throw up a bunch of text, say 100 words, and see if that overflowed or underflowed. If it underflowed, more text was added (say 20 words) and it would binary search until it found exactly how much text would fit. Then it stored in a SQLite DB a row saying "page 12 shows words 100-228" for example. The app would go through this for each font. Another table held all the words in individual rows (!). An optimization step would chop that table down, combining words that always appeared on the same page no matter what font.
I used a Webkit display so the book could include HTML formatting. Now that really complicated the page breakup (e.g. had to keep italics going from page to page) but it let me include some fancier formatting in the text.
Then the reader app had very little to do to display pages; from the page id look up what range of words go on that page, then throw that text up into a webkit view. The user could jump between pages all over the book very quickly, all the hard CPU work had already been done by the rendering app.