manuels / Hpdf.js
Licence: zlib
Create PDFs in your browser or nodejs (javascript port of libharu)
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javascript
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hpdf.js
Create PDFs in your browser (port of libharu) See the demo page
Why?
Because other projects with the same goal lack a lot of features (e.g. custom fonts).
Features
- Custom Fonts (Type1 and TTF)
- PNG, JPG and RAW images
- Password encryption
- Text and Link Annotations
- Outlines
- Drawing function (lines, cycles etc.)
- Encoding support
How to use
Include hpdf.js
or hpdf.min.js
in your HTML file and see examples or libharu API reference
API naming convention
- Function names are like their libharu API pendants but object-oriented and their first letter is lowercase.
// javascript code // C code
var pdf = new HPDF(); HPDF_Doc pdf = HPDF_New (error_handler, NULL);
var page = pdf.addPage(); HPDF_Page page = HPDF_AddPage(pdf);
pdf.free(); HPDF_Free(pdf);
-
Get
in the function name is ommitted andSet
is kept
// javascript code // C code
var width = page.width(); HPDF_REAL width = HPDF_Page_GetWidth(page);
page.setLineWidth(5); HPDF_Page_SetLineWidth(page, 5);
- Use
undefined
in Javascript where you would useNULL
in C
// javascript code // C code
var root = pdf.createOutline(undefined, root = HPDF_CreateOutline (pdf, NULL, "OutlineRoot", NULL);
"OutlineRoot", undefined);
- Use strings (case irrelevant) in Javascript where you would use constants in C
// javascript code // C code
page.setSize('B5', 'landscape'); HPDF_Page_SetSize(page, HPDF_PAGE_SIZE_B5, HPDF_PAGE_LANDSCAPE);
- Tailing
NULL
/undefined
can be ommitted
// javascript code // C code
var font = pdf.font('Helvetica'); HPDF_Font font = HPDF_PDF_GetFont(pdf, 'Helvetica', NULL);
- Instead of calling a error handler in C, an
Exception
is thrown in Javascript
Dependencies
None. You just need emscripten and CoffeeScript if you want to help developing hpdf.js
How to compile (for devs only)
-
Configure libhaku
cmake ./libharu
-
Configure libpng
cd ./libpng; cmake .; cd ..
-
Compile hpdf.js
./compile.sh
(You might want to change some paths in this bash script!)
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