javascript - How to add top margin when using html2canvas and jspdf, when the canvas is split on multiple pages? -

-

i'm using html2canvas , jspdf create pdf of dynamic webpage, when size of canvas great 1 page add page , re-add image shifting next page. working can not figure out how set top margin , result 2nd page onward content on top of page. there way set top margin pages?

            html2canvas($("#formpdfarea"), {             onrendered: function(canvas) {                 var imgdata = canvas.todataurl(                     'image/png');                      var doc = new jspdf('l', 'mm', 'letter');                 doc.addimage(imgdata, 'png', 5, 0);                  //output 96dpi, additional pages added if output greater 816 pixels (816p/96dpi = 8.5 inches)                 if(canvas.height > 816){                      for(i=1; i*816<canvas.height; i++){                         doc.addpage();                         //-215.89mm -8.5inches                         doc.addimage(imgdata, 'png',5,-215.89*i);                     }                 }                 doc.save('formoutput.pdf');             }         });

i resolved adjusting mediabox properties.

the method putpages in jspdf writes out page, , can manipulate media box , page width/height adjust page margins. hardcoded additional 52 (0.75in) height , -36 (0.5in) mediabox give every page margin.

this code change:

wpt = (pagewidth = pagedim[n].width) * k; hpt = (pageheight = pagedim[n].height + 52) * k; out('<</type /page'); out('/parent 1 0 r'); out('/resources 2 0 r'); out('/mediabox [-36 0 ' + f2(wpt) + ' ' + f2(hpt) + ']');

you have change page size footer looks right also.

i used:

canvas.height = 72 * 10.25; // instead of 11 canvas.width = 72 * 8.5;

this can turned in proper feature instead of hardcoding it, works now.


Comments

Post a Comment

Popular posts from this blog

Android : Making Listview full screen -

-
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context=".mainactivity"> <edittext android:layout_margintop="5dp" android:layout_width="match_parent" android:layout_height="50dp" android:background="@drawable/location_edittext" android:id="@+id/locationeditext" android:textsize="15sp" android:textcolor="#999" android:paddingleft="15dp" /> <com.example.ravi_gupta.slider.viewpagercustomduration android:layout_width="wrap_content" android:layout_height="0dp" android:id="@+id/viewpager" android:scrollbarstyle="outsideoverlay" android:layout_weight="0.5...
Read more

javascript - Parse JSON from the body of the POST -

-
i'm using cameratag.com record video on website. service can send json response server can save data database. don't know how proceed here: the documentation states please note json repsonse passed in body of post , not form parameters. here example of how parse response in ruby: data = json.parse(request.raw_post) video_uuid = data["uuid"] but don't know how data on javascript. i'm not experienced in js please bare me :) post sample: { "uuid": "00012710-4b65-0131-ffe6-22000a499ea4", "camera_uuid": "98373a20-79ee-0130-3e42-1231390fcc11", "created_at": "2013-12-20t05:25:02.000z", "percent_complete": 100, "short_code": "kktb4q", "metadata": { }, "state": "published", "recorded_from": "http://singwho.com", "publish_type": null, "formats": [ { "name...
Read more

javascript - How to Hide Date Menu from Datepicker in yii2 -

-
basically in datetimepicker widget date choose first time, how can hide date option widget , filter according time. tried not working want hide remove button [ 'attribute'=>'time', 'label'=>'time', 'format'=>'raw', 'value'=>function($data){ return date('h:i:s',strtotime($data->time)); }, 'filter'=> datetimepicker::widget([ 'model' => $searchmodel, 'attribute' => 'time', 'clientoptions' => [ 'autoclose' => true, 'format' => 'hh:ii', 'showon' =...
Read more