diff --git a/ner-edith.js b/ner-edith.js
index 30b8721..ecb35c4 100644
--- a/ner-edith.js
+++ b/ner-edith.js
@@ -1,19 +1,120 @@
-var data;
 
-var file = null;
+function loadFile(evt, onComplete) {
+
+    var file = evt.target.files[0];
+
+    Papa.parse(file, {
+        header: true,
+        delimiter: '\t',
+        quoteChar: String.fromCharCode(0),
+	    escapeChar: String.fromCharCode(0),
+        comments: "#",
+        skipEmptyLines: true,
+        dynamicTyping: true,
+        complete: function(results) { onComplete(results, file) }
+    });
+}
+
 
 var displayRows=30
 var startIndex=0;
 var endIndex=displayRows;
+var urls = null;
+
+function setupInterface(data, file) {
+
+    function updateTable() {
+
+        let editable_html =
+            `
+                <td class="editable">
+            `;
 
-function loadFile(evt) {
+        $('#table-body').empty();
+
+        $.each(data.data,
+                    function(nRow, el) {
+
+                        if (nRow < startIndex) return;
+                        if (nRow >= endIndex) return;
+
+                        var row = $("<tr/>");
+                        row.append($('<td> <button class="btn btn-link btn-xs py-0 offset">' +
+                                            nRow + '</button>  </td>'));
+
+                        $.each(el,
+                            function(column, content) {
+
+                                if (column == 'url_id') return
+
+                                row.append(
+                                    $(editable_html).
+                                        text(content).
+                                        data('tableInfo', { 'nRow': nRow, 'column': column })
+                                );
+                            });
+
+                        $("#table tbody").append(row);
+                    });
+
+        $("#table td:contains('B-PER')").addClass('ner_per');
+        $("#table td:contains('I-PER')").addClass('ner_per');
+        $("#table td:contains('B-LOC')").addClass('ner_loc');
+        $("#table td:contains('I-LOC')").addClass('ner_loc');
+        $("#table td:contains('B-ORG')").addClass('ner_org');
+        $("#table td:contains('I-ORG')").addClass('ner_org');
+        $("#table td:contains('B-OTH')").addClass('ner_oth');
+        $("#table td:contains('I-OTH')").addClass('ner_oth');
+        $("#table td:contains('B-TODO')").addClass('ner_todo');
+        $("#table td:contains('I-TODO')").addClass('ner_todo');
+
+        $(".offset").on('click',
+            function(evt) {
+
+                if (urls != null) {
+                    return;
+                }
+
+                let url_mapping_html =
+                    `
+                    <br/>
+                    <br/>
+                    <br/>
+                    <input type="file" id="url-mapping-tsv-file" style="visibility: hidden; width: 1px; height: 1px"/>
+                    Please
+                    <a href="" onclick="$('#url-mapping-tsv-file').click(); return false">upload a url mapping file</a>
+                     or<button class="btn btn-link" id="goback">go back to edit mode.</button>
+                    `;
+
+                $("#tableregion").html(url_mapping_html);
+                $("#btn-region").empty();
+
+                $('#goback').on('click',
+                    function(evt) {
+                        setupInterface(data, file);
+                     }
+                );
+
+                $('#url-mapping-tsv-file').change(
+                    function(evt) {
+                        loadFile(evt,
+                            function(results, url_mapping_file) {
+                                urls = results;
+
+                                setupInterface(data, file);
+                            });
+                    }
+                );
+            }
+        );
+    }
 
-    let table_html =
+     let table_html =
         `
         <table id="table">
             <thead>
             <tr>
-                <th><button class="btn btn-link" id="back"><<</button>OFFSET</th>
+                <th><button class="btn btn-link" id="back"><<</button>LOCATION</th>
                 <th>POSITION</th>
                 <th>TOKEN</th>
                 <th>NE-TAG</th>
@@ -33,6 +134,53 @@ function loadFile(evt) {
 
     $("#btn-region").html(save_html)
 
+    $("#file-region").html('<h3>' + file.name + '</h3>');
+
+    function saveFile(evt) {
+
+        let csv =
+            Papa.unparse(data,
+                {
+                    header: true,
+                    delimiter: '\t',
+                    comments: "#",
+                    quoteChar: String.fromCharCode(0),
+                    escapeChar: String.fromCharCode(0),
+                    skipEmptyLines: true,
+                    dynamicTyping: true
+                });
+
+        openSaveFileDialog (csv, file.name, null)
+    }
+
+    function openSaveFileDialog (data, filename, mimetype) {
+
+        if (!data) return;
+
+        var blob = data.constructor !== Blob
+          ? new Blob([data], {type: mimetype || 'application/octet-stream'})
+          : data ;
+
+        if (navigator.msSaveBlob) {
+          navigator.msSaveBlob(blob, filename);
+          return;
+        }
+
+        var lnk = document.createElement('a'),
+            url = window.URL,
+            objectURL;
+
+        if (mimetype) {
+          lnk.type = mimetype;
+        }
+
+        lnk.download = filename || 'untitled';
+        lnk.href = objectURL = url.createObjectURL(blob);
+        lnk.dispatchEvent(new MouseEvent('click'));
+        setTimeout(url.revokeObjectURL.bind(url, objectURL));
+
+    }
+
     $('.saveButton').on('click', saveFile)
 
     let editingTd;
@@ -108,167 +256,74 @@ function loadFile(evt) {
             makeTdEditable(target);
         });
 
-    file = evt.target.files[0];
-
-    // TODO: adapt to streaming with 'chunk' callback for large file support, see https://www.papaparse.com/docs
-    Papa.parse(file, {
-        header: true,
-        delimiter: '\t',
-        comments: "#",
-        skipEmptyLines: true,
-        dynamicTyping: true,
-        complete: function(results) {
-            //console.log(results);
-            data = results;
-
-            updateTable();
-
-            $("#file-region").html('<h3>' + file.name + '</h3>');
-
-            $('#tableregion')[0].addEventListener("wheel",
-                function(event) {
-
-                    if (event.deltaY < 0) {
-
-                        if (startIndex <= 0) return;
+    updateTable();
 
-                        startIndex -= 1;
-                        endIndex -= 1;
-                    }
-                    else {
+    $('#tableregion')[0].addEventListener("wheel",
+        function(event) {
 
-                        if (endIndex >= data.data.length) return;
+            if (event.deltaY < 0) {
 
-                        startIndex += 1;
-                        endIndex += 1;
-                    }
+                if (startIndex <= 0) return;
 
-                    updateTable();
-                });
+                startIndex -= 1;
+                endIndex -= 1;
+            }
+            else {
 
-            $('#back').on('click',
-                function(evt) {
+                if (endIndex >= data.data.length) return;
 
-                    if (startIndex >= displayRows) {
-                        startIndex -= displayRows;
-                        endIndex -= displayRows;
-                    }
-                    else {
-                        startIndex = 0;
-                        endIndex = displayRows;
-                    }
+                startIndex += 1;
+                endIndex += 1;
+            }
 
-                    updateTable();
-                }
-            );
+            updateTable();
+        });
 
-            $('#next').on('click',
-                function(evt) {
+    $('#back').on('click',
+        function(evt) {
 
-                    if (endIndex + displayRows < data.data.length) {
-                        endIndex += displayRows;
-                        startIndex = endIndex - displayRows;
-                    }
-                    else {
-                        endIndex = data.data.length;
-                        startIndex = endIndex - displayRows;
-                    }
+            if (startIndex >= displayRows) {
+                startIndex -= displayRows;
+                endIndex -= displayRows;
+            }
+            else {
+                startIndex = 0;
+                endIndex = displayRows;
+            }
 
-                    updateTable();
-                }
-            );
+            updateTable();
         }
-    });
-}
-
-function updateTable() {
-
-    let editable_html =
-        `
-            <td class="editable">
-        `;
-
-    $('#table-body').empty();
+    );
 
-    $.each(data.data,
-                function(nRow, el) {
+    $('#next').on('click',
+        function(evt) {
 
-                    if (nRow < startIndex) return;
-                    if (nRow >= endIndex) return;
-
-                    var row = $("<tr/>");
-                    row.append($("<td/>").text(nRow));
-
-                    $.each(el,
-                        function(column, content) {
-                            row.append(
-                                $(editable_html).
-                                    text(content).
-                                    data('tableInfo', { 'nRow': nRow, 'column': column })
-                            );
-                        });
-
-                    $("#table tbody").append(row);
-                });
-
-    $("#table td:contains('B-PER')").addClass('ner_per');
-    $("#table td:contains('I-PER')").addClass('ner_per');
-    $("#table td:contains('B-LOC')").addClass('ner_loc');
-    $("#table td:contains('I-LOC')").addClass('ner_loc');
-    $("#table td:contains('B-ORG')").addClass('ner_org');
-    $("#table td:contains('I-ORG')").addClass('ner_org');
-    $("#table td:contains('B-OTH')").addClass('ner_oth');
-    $("#table td:contains('I-OTH')").addClass('ner_oth');
-    $("#table td:contains('B-TODO')").addClass('ner_todo');
-    $("#table td:contains('I-TODO')").addClass('ner_todo');
-}
-
-function saveFile(evt) {
-
-    let csv =
-        Papa.unparse(data,
-            {
-                header: true,
-                delimiter: '\t',
-                comments: "#",
-                skipEmptyLines: true,
-                dynamicTyping: true
-            });
+            if (endIndex + displayRows < data.data.length) {
+                endIndex += displayRows;
+                startIndex = endIndex - displayRows;
+            }
+            else {
+                endIndex = data.data.length;
+                startIndex = endIndex - displayRows;
+            }
 
-    openSaveFileDialog (csv, file.name, null)
+            updateTable();
+        }
+    );
 }
 
 
-function openSaveFileDialog (data, filename, mimetype) {
-
-    if (!data) return;
-
-    var blob = data.constructor !== Blob
-      ? new Blob([data], {type: mimetype || 'application/octet-stream'})
-      : data ;
-
-    if (navigator.msSaveBlob) {
-      navigator.msSaveBlob(blob, filename);
-      return;
-    }
-
-    var lnk = document.createElement('a'),
-        url = window.URL,
-        objectURL;
-
-    if (mimetype) {
-      lnk.type = mimetype;
-    }
-
-    lnk.download = filename || 'untitled';
-    lnk.href = objectURL = url.createObjectURL(blob);
-    lnk.dispatchEvent(new MouseEvent('click'));
-    setTimeout(url.revokeObjectURL.bind(url, objectURL));
-
-}
-
 $(document).ready(
     function() {
-        $('#tsv-file').change(loadFile);
+        $('#tsv-file').change(
+            function(evt) {
+
+                loadFile ( evt,
+                    function(results, file) {
+
+                        setupInterface(results, file);
+                    })
+            }
+        );
     }
 );
\ No newline at end of file
diff --git a/tools/README.md b/tools/README.md
new file mode 100644
index 0000000..e69de29
diff --git a/tools/cli.py b/tools/cli.py
new file mode 100644
index 0000000..83b8668
--- /dev/null
+++ b/tools/cli.py
@@ -0,0 +1,97 @@
+import re
+import click
+import pandas as pd
+from io import StringIO
+
+
+@click.command()
+@click.argument('tsv-file', type=click.Path(exists=True), required=True, nargs=1)
+def extract_document_links(tsv_file):
+
+    parts = extract_doc_links(tsv_file)
+
+    for part in parts:
+
+        print(part['url'])
+
+
+@click.command()
+@click.argument('tsv-file', type=click.Path(exists=True), required=True, nargs=1)
+@click.argument('annotated-tsv-file', type=click.Path(exists=False), required=True, nargs=1)
+def annotate_tsv(tsv_file, annotated_tsv_file):
+
+    parts = extract_doc_links(tsv_file)
+
+    annotated_parts = []
+
+    urls = []
+
+    for part in parts:
+
+        part_data = StringIO(part['header'] + part['text'])
+        urls.append(part['url'])
+
+        df = pd.read_csv(part_data, sep="\t", comment='#', quoting=3)
+
+        df['url_id'] = len(annotated_parts)
+
+        annotated_parts.append(df)
+
+    df = pd.concat(annotated_parts)
+
+    df.to_csv(annotated_tsv_file, sep="\t", quoting=3, index=False)
+
+
+def extract_doc_links(tsv_file):
+
+    parts = []
+
+    header = None
+
+    with open(tsv_file, 'r') as f:
+        
+        text = []
+        url = None
+
+        for line in f:
+
+            if header is None:
+                header = "\t".join(line.split()) + '\n'
+                continue
+
+            urls = [url for url in
+                    re.findall(r'http[s]?://(?:[a-zA-Z]|[0-9]|[$-_@.&+]|[!*\(\),]|(?:%[0-9a-fA-F][0-9a-fA-F]))+', line)]
+
+            if len(urls) > 0:
+                if url is not None:
+                    parts.append({"url": url, 'header': header, 'text': "".join(text)})
+                    text = []
+
+                url = urls[-1]
+            else:
+                if url is None:
+                    continue
+
+                line = '\t'.join(line.split())
+
+                if line.count('\t') == 2:
+
+                    line = "\t" + line
+
+                if line.count('\t') == 3:
+
+                    text.append(line + '\n')
+
+                    continue
+
+                if line.startswith('#'):
+                    continue
+
+                if len(line) == 0:
+                    continue
+
+                print('Line error: |', line, '|Number of Tabs: ', line.count('\t'))
+
+        parts.append({"url": url, 'header': header, 'text': "".join(text)})
+
+    return parts
diff --git a/tools/requirements.txt b/tools/requirements.txt
new file mode 100644
index 0000000..a45ae2b
--- /dev/null
+++ b/tools/requirements.txt
@@ -0,0 +1,3 @@
+numpy
+pandas
+click
\ No newline at end of file
diff --git a/tools/setup.py b/tools/setup.py
new file mode 100644
index 0000000..b415b01
--- /dev/null
+++ b/tools/setup.py
@@ -0,0 +1,35 @@
+from io import open
+from setuptools import find_packages, setup
+
+with open('requirements.txt') as fp:
+    install_requires = fp.read()
+
+setup(
+    name="ner-edith",
+    version="0.0.1",
+    author="",
+    author_email="qurator@sbb.spk-berlin.de",
+    description="ner.edith",
+    long_description=open("README.md", "r", encoding='utf-8').read(),
+    long_description_content_type="text/markdown",
+    keywords='qurator',
+    license='Apache',
+    url="https://github.com/cneud/ner.edith",
+    packages=find_packages(exclude=["*.tests", "*.tests.*",
+                                    "tests.*", "tests"]),
+    install_requires=install_requires,
+    entry_points={
+      'console_scripts': [
+        "extract-doc-links=cli:extract_document_links",
+        "annotate-tsv=cli:annotate_tsv"
+      ]
+    },
+    python_requires='>=3.6.0',
+    tests_require=['pytest'],
+    classifiers=[
+          'Intended Audience :: Science/Research',
+          'License :: OSI Approved :: Apache Software License',
+          'Programming Language :: Python :: 3',
+          'Topic :: Scientific/Engineering :: Artificial Intelligence',
+    ],
+)