[PDFBOX-5217] Convert PDF documents to images Example

.gitignore

@@ -3,3 +3,5 @@ bin/
 .settings/
 .classpath
 .project
+.idea/
+*.iml

.travis.yml

@@ -19,10 +19,11 @@
 
 language: java
 
+# https://docs.travis-ci.com/user/reference/xenial/#jvm-clojure-groovy-java-scala-support
 jdk:
-  - oraclejdk8
-  - oraclejdk7
-  - openjdk6
+  - oraclejdk12
+  - openjdk8
+  - openjdk11
 
 before_install:
   - sudo apt-get update -qq

README.md

@@ -1,4 +1,21 @@
-Apache PDFBox <http://pdfbox.apache.org/>
+<!---
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements.  See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+--->
+
+Apache PDFBox <https://pdfbox.apache.org/>
 ===================================================
 
 The Apache PDFBox library is an open source Java tool for working with PDF 
@@ -7,18 +24,18 @@ of existing documents and the ability to extract content from documents.
 PDFBox also includes several command line utilities. PDFBox is published
 under the Apache License, Version 2.0.
 
-PDFBox is a project of the Apache Software Foundation <http://www.apache.org/>.
+PDFBox is a project of the Apache Software Foundation <https://www.apache.org/>.
 
 Binary Downloads
 ----------------
 
 You can download binary versions for releases currently under development or older
-releases from out [Download Page](http://pdfbox.apache.org/download.cgi).
+releases from our [Download Page](https://pdfbox.apache.org/download.cgi).
 
 Build
 -----
 
-You need Java 6 (or higher) and Maven 2 <http://maven.apache.org/> to
+You need Java 6 (or higher) and Maven 2 <https://maven.apache.org/> to
 build PDFBox. The recommended build command is:
 
     mvn clean install
@@ -33,24 +50,24 @@ Contribute
 There are various ways to help us improve PDFBox. 
 
 - look at the [Issue Tracker](https://issues.apache.org/jira/browse/PDFBOX) to help us fix bugs.
-- answer questions on our [Users Mailing List](http://pdfbox.apache.org/mailinglists.html "Subscribe to Mailing List").
+- answer questions on our [Users Mailing List](https://pdfbox.apache.org/mailinglists.html "Subscribe to Mailing List").
 - help us enhance the [Examples](https://svn.apache.org/repos/asf/pdfbox/trunk/examples/)
 - help us to enhance the [PDFBox Documentation](https://git-wip-us.apache.org/repos/asf/pdfbox-docs)
 or on [GitHub](https://github.com/apache/pdfbox-docs). 
 
 Support
 -------
 
-**Please follow the guidelines at our [Support Page](http://pdfbox.apache.org/support.html).**
+**Please follow the guidelines at our [Support Page](https://pdfbox.apache.org/support.html).**
 
 If you have questions about how to use PDFBox do ask on the
 [Users Mailing List](/mailinglists.html "Subscribe to Mailing List").
 This will get you help from the entire community.
 
 The PDFBox examples and the test code in the sources will also provide additional information.
 
-And there are additonal resources available on sites such as
-[Stack Overflow](http://stackoverflow.com/search?q=pdfbox "Stack Overflow").
+And there are additional resources available on sites such as
+[Stack Overflow](https://stackoverflow.com/search?q=pdfbox "Stack Overflow").
 
 If you are sure you have found a bug the please report the issue in our 
 [Issue Tracker](https://issues.apache.org/jira/browse/PDFBOX). 
@@ -60,7 +77,7 @@ Known Limitations and Problems
 
 See the issue tracker at https://issues.apache.org/jira/browse/PDFBOX for
 the full list of known issues and requested features. Some of the more
-commont issues are:
+common issues are:
 
 1. You get text like "G38G43G36G51G5" instead of what you expect when you are
    extracting text. This is because the characters are a meaningless internal
@@ -91,7 +108,7 @@ The ASF licenses this file to You under the Apache License, Version 2.0
 (the "License"); you may not use this file except in compliance with
 the License.  You may obtain a copy of the License at
 
-     http://www.apache.org/licenses/LICENSE-2.0
+     https://www.apache.org/licenses/LICENSE-2.0
 
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
@@ -108,7 +125,7 @@ and/or re-export to another country, of encryption software.  BEFORE using
 any encryption software, please  check your country's laws, regulations and
 policies concerning the import, possession, or use, and re-export of
 encryption software, to  see if this is permitted.  See
-<http://www.wassenaar.org/> for more information.
+<https://www.wassenaar.org/> for more information.
 
 The U.S. Government Department of Commerce, Bureau of Industry and
 Security (BIS), has classified this software as Export Commodity Control