I need to upload a PDF file and insert a generated 2D Barcode in the uploaded file
The 2D Barcode image generation I have that figured out already,
What is the simplest way to add that image to the pdf file using laravel, any help would be much appreciated
Thanx in advance
Maybe you can use fpdf:
http://www.fpdf.org/en/doc/image.htm
For example:
// Insert a logo in the top-left corner at 300 dpi
$pdf->Image('logo.png',10,10,-300);
Related
Is it possible to upload and crop multiple images using Cloudinary (Javascript/React-JS) ?
Any help shall be greatly appreciated.
Thanks
If you're using the Upload API, you can upload multiple files in succession and send the cropping coordinates for each in the custom_coordinates property: https://cloudinary.com/documentation/image_upload_api_reference#upload_optional_parameters
I assume from your question that you're not uploading directly though, and are using the Upload Widget on your page.
If so, the cropping interface only works when uploading a single file, so to upload multiple files and let the user choose crop coordinates for each, you'll need to open the widget multiple times in succession: https://cloudinary.com/documentation/upload_widget_reference#cropping_parameters
I can't figure out how to do like this page http://service.citroen.com/ddb/modeles/c5/c5_c5/ed10-07/de_de/4_21_c5-al-ed10-2007.pdf I embed usually the PDF from slideside in my site but people cant dowload from because they need to have an accoount. So technically how ? Thanks
You will need a PDF viewer component for displaying the PDF. You will have to configure the PDF component so as to limit download and print options.
http://www.gnostice.com/nl_article.asp?id=329&t=Display_PDF_without_saving_file_to_disk_in_WinForms_and_ASP_NET
I am developing an Android app now, it needs to recognize captcha from website.
I utilize the tess-two to recognize captcha and follow TrainingTesseract3 instructions to train my own traineddata (using jTessBoxEditor to correct characters), but it cannot recognize correctly and even cannot recognize it.
The below TIFF image is that I use to train my Tesseract, I collect many captchas and merge them into a image.
TIFF image
The image that I want to recognize
For example, the expected result of the above image should be k8666, but the actual result is only 66.
Does anyone give me a help? Thanks.
I tried your images using a .NET wrapper for tesseract-ocr Tesseract-ocr .Net Wrapper by Charliesw.
I got some better results like (K8EEE, K8656), i think you have to increase the text font and make it bold and i saved the image in tiff format with 96DPI resolution to get a better results than mine.
I'm trying to insert some SVG images in a PDF using TCPDF with the method TCPDF::ImageSVG, but when I try this I get a white space.
If I try to enable TCPDF::setRasterizeVectorImages the image shows in the PDF file, but it is rasterized of course and so its quality is not good.
Do you have any idea?
Thank you very much for your help!
Unfortunately, TCPDF's SVG handling is quite limited, and the cause of your issue depends on the SVG you are trying to use. Later versions of TCPDF support more SVG functionality, so if you haven't done so, try using a later version of TCPDF.
If an update doesn't resolve the issue, and you're forced to use raster images, you can improve quality at the cost of file size. You can do this by rasterizing them at a high DPI yourself outside of TCPDF. Once you've done this, take your new high-resolution raster image and add it to your PDF with the Image method like any other raster image. At work we usually rasterize to 300dpi, but your application may call for more or less.
If your image gets added to the PDF far larger on the page than you expected, specify at least one of the dimensions so TCPDF knows how much of the page you're intending the image to use.
How to display PDF thumbnails in ASP page
There is no built in functionality for ASP to process and manipulate PDF files. You will need to install a custom component on your server, make sure your webhost allows this, or ask them for a list of installed objects as they often have ones that will do what you want.
A good free on is GFlax:
http://download.cnet.com/GFLAx/3000-10248_4-10327603.html
It will allow you to chop a PDF up into seperate JPEG files, and from there you can get the object to resize the JPEGs into different thumbnail sizes for your needs.
The GFlax documentation should get you started.
Have you looked at this? Mapsoft ThumbNails
you can use Ghost script sharp for displaying pdf thumbnail . Here is the code
GhostscriptWrapper.GeneratePageThumb(filepath, thumbnailPath, 1, 20, 20);