Skip to main content

Basic object detection in python using OpenCv and Numpy - by Dustbiin

Best Pdf Viewer/Reader for Linux/Ubuntu 20.04 - by Dustbiin

PDF viewer and editor for Ubuntu operating system.

image

In now days lot's of PDF reader/viewer available for Ubuntu and they are also Open source, But if you want a software which is also useful for the advance thing like-
  • Display PDFs with high fidelity
  • Annotate & Markup PDFs
  • Fill & Save Forms
  • Render Digital Signatures & Layers
  • Advanced User Interface
  • Advanced Print & Search Options
  • Document Storage Integrations
  • DocuSign© Integration
If you want a PDF reader which has all these feature then you can use QOPPA SOFTWARE PDF studio.

PDF Studio Viewer is a cross-platform PDF reader that is reliable and easy to use. PDF Studio Viewer can annotate PDF documents and fill interactive forms. For more editing features, Qoppa Software publishes PDF Studio Standard and Pro editions.

Download Link- click hear

Look like-




Comments

Popular posts from this blog

Custom cell color in Excel Apache POI - By Dustbiin

Create custom color for cell background by using java color class Create custom color- XSSFWorkbook workBook = new XSSFWorkbook (); IndexedColorMap colorMap = workbook.getStylesSource().getIndexedColors(); Font tableHeadOneFontStyle = workbook.createFont();  tableHeadOneFontStyle.setBold( true ); tableHeadOneFontStyle.setColor( IndexedColors.BLACK.getIndex() ); XSSFCellStyle tableHeaderOneColOneStyle = workbook.createCellStyle(); tableHeaderOneColOneStyle.setFont( tableHeadOneFontStyle ); tableHeaderOneColOneStyle.setFillForegroundColor( new XSSFColor( new java.awt.Color( 255, 231, 153 ), colorMap ) ); tableHeaderOneColOneStyle.setFillPattern( FillPatternType.SOLID_FOREGROUND ); tableHeaderOneColOneStyle = setLeftRightBorderColor( tableHeaderOneColOneStyle ); tableHeaderOneColOneStyle = alignCenter( tableHeaderOneColOneStyle );

Create design by connecting dot's using opencv and numpy - by Dustbiin

Create basic design by using connecting dot's using your mouse- I have been create this by using mouse event check out the code below- use Python, OpenCv , NumPy import numpy as np import cv2 def click_event(event , x , y , flags , param): if event == cv2.EVENT_LBUTTONDOWN: print(x , " , " , y) font = cv2.FONT_HERSHEY_SIMPLEX strXY = str(x) + ' , ' + str(y) # cv2.putText(img,strXY, (x, y), font, .1, (255, 255, 0), 2) cv2.circle(img , (x , y) , 3 , ( 0 , 0 , 255 ) , - 1 ) points.append((x , y)) if len(points) >= 2 : cv2.circle(img , points[- 1 ] , 3 , ( 0 , 0 , 255 ) , - 1 ) # cv2.putText(img,strXY, points[-1], font, .1, (255, 255, 0), 2) cv2.line(img , points[- 2 ] , points[- 1 ] , ( 0 , 0 , 255 ) , 1 ) cv2.imshow( "Image" , img) points = [] img = np.zeros(( 512 , 512 , 3 )) cv2.imshow( "Image" , img) cv2.setMouseCallback( 'Image' ...

Read data from .pfx file for Digita Signature - by Dustbiin

Their is many way to read data for data for digital signature but hear we discus reading data from .pfx file -  code for read .pfx file - import java.io.FileInputStream; import java.security.KeyStore; import java.security.cert.X509Certificate; import java.util.Date; import java.util.Enumeration; import javax.net.ssl.KeyManagerFactory; public class PdfDemo { public static void checkExpire() { try { KeyManagerFactory kmf = javax.net.ssl.KeyManagerFactory.getInstance( "SunX509" ); KeyStore keystore = KeyStore.getInstance( "PKCS12" ); char[] password = "123456".toCharArray(); keystore.load( new FileInputStream( "demo.pfx" ), password ); //keystore.load(new FileInputStream(certificate), password); kmf.init( keystore, password ); Enumeration<String> aliases = keystore.aliases(); while ( aliases.hasMoreElements() ) { ...