B4A Library PDFWriter

XverhelstX · Nov 26, 2011

Hello everyone,

Here is yet another library: PDFWriter.
Linked by user mwhetmore at this topic, you can now create your own PDF files and save them!
The library has 3 declarations:

I. PDFWriter

B4X:

Dim PDFWriter1 As PDFWriter

Declare this in globals so you can benifit from all main methods for writing your PDF File.

1.1 Initialize

B4X:

PDFWriter1.Initialize("PDFWriter1",PaperSize.A4_WIDTH, PaperSize.A4_HEIGHT)

This initializes your PDF writer and gives in an eventname for when the pdf has been created, and it creates a new document with the papersizes than you can choose. (A1, A2, A3, and a lot more!).

1.2 addLine

B4X:

PDFWriter1.addLine(int fromLeft, int fromBottom, int toLeft, int toBottom)

Adds a line to your PDF file. The parameters are self-explanatory.

1.3 addRawContent

B4X:

PDFWriter1.addRawContent(String rawContent)

Adds raw content to your pdf file.
For example: PDFWriter1.addRawContent("0 1 0 rg\n")

1.4 addRectangle

B4X:

PDFWriter1.addRectangle(int fromLeft, int fromBottom, int toLeft, int toBottom)

Adds a rectangle to your pdf file.

1.5 addText

B4X:

PDFWriter1.addText(int leftPosition, int topPositionFromBottom, int fontSize, String text)
PDFWriter1.addText2(int leftPosition, int topPositionFromBottom, int fontSize, String text, String transformation)

This will add text to your PDF file.
The difference between addText and addText2 is that you can add a transformation to your text, see chapter III. PDFStandardFonts.

1.6 ConverseDocument

B4X:

PDFWriter1.ConverseDocument

This wll create you a PDF file. Sub ConversionDone will be raised when the conversion has been done.

B4X:

Sub PDFWriter1_ConversionDone (Content As String)
   PDFContent = Content
   ProgressDialogHide
   ToastMessageShow("Conversion has been done.",False)
End Sub

1.7 CreateNewDocument

B4X:

PDFWriter1.CreateNewDocument(int Width, int Height)

This wll create a new PDF document with the given Width and Height in Papersizes, like in the initialize method.

1.8 newPage

B4X:

PDFWriter1.newPage

This wll create a new PDF page in the same document.

1.9 outputToFile

B4X:

PDFWriter1.outputToFile(String Directory, String FileName, String pdfContent, String encoding)

This will save your pdf content in the given Directory with the given filename with the given encoding.

B4X:

PDFWriter1.outputToFile(File.DirDefaultExternal,"myNewPDF.pdf",PDFContent,"ISO-8859-1")

2.0 outputToScreen

B4X:

PDFWriter1.outputToScreen

This will show your pdfcontent in a label. (note that it won't show the pdf itself but the content!)

B4X:

Label1.Text = PDFWriter1.outputToScreen

2.1 setFont

B4X:

PDFWriter1.setFont(String subType, String baseFont)
PDFWriter1.setFont2(String subType, String baseFont, String encoding)

This will set the font in your PDF file.
The difference between setFont and setFont2 is that you can add a encoding to your text in setFont2, see chapter III. PDFStandardFonts.

II. PDFPaperSizes

B4X:

Dim PaperSize As PDFPaperSizes

With PaperSize you can select, when you create a new document (or with initialize), what paper you would like to use to work with.
Here are all the options:

A0_WIDTH
A0_HEIGHT
A1_WIDTH
A1_HEIGHT
A2_WIDTH
A2_HEIGHT
A3_WIDTH
A3_HEIGHT
A4_WIDTH
A4_HEIGHT
A5_WIDTH
A5_HEIGHT
A6_WIDTH
A6_HEIGHT
A7_WIDTH
A7_HEIGHT
A8_WIDTH
A8_HEIGHT
A9_WIDTH
A9_HEIGHT
A10_WIDTH
A10_HEIGHT
B0_WIDTH
B0_HEIGHT
B1_WIDTH
B1_HEIGHT
B2_WIDTH
B2_HEIGHT
B3_WIDTH
B3_HEIGHT
B4_WIDTH
B4_HEIGHT
B5_WIDTH
B5_HEIGHT
B6_WIDTH
B6_HEIGHT
B7_WIDTH
B7_HEIGHT
B8_WIDTH;
B8_HEIGHT
B9_WIDTH
B9_HEIGHT
B10_WIDTH
B10_HEIGHT
LETTER_WIDTH
LETTER_HEIGHT
TABLOID_WIDTH
TABLOID_HEIGHT
LEDGER_WIDTH
LEDGER_HEIGHT
LEGAL_WIDTH
LEGAL_HEIGHT
STATEMENT_WIDTH
STATEMENT_HEIGHT
EXECUTIVE_WIDTH
EXECUTIVE_HEIGHT
FOLIO_WIDTH
FOLIO_HEIGHT
QUARTO_WIDTH
QUARTO_HEIGHT

III. PDFStandardFonts

B4X:

Dim Fonts As PDFStandardFonts

And to end, you can choose between a lot of available fonts.
I won't put them here, but it varies from Times New Roman, to Courier, and some more.

IV. License

The library is licensed under BSD!
So you just have to mention the author. (not me!)
Author: Javier Santho Domingo (j-a-s-d@coderesearchlabs.com)

In the attachments, you can find the library files and 2 text files:
A readme.txt and Sample.txt
The project was just to big to upload here at the forum.
So just copy the content of Sample.txt in a new Basic4Android Project and
check the PDFWriter at the right hand pane in the library tab of the IDE, and run the project.

Have fun.

Tomas

Smee · Dec 29, 2011

I found the color code for 50% gray

PDFWriter1.addRawContent("0.5 g ")

Located here
http://www.adobe.com/technology/pdfs/presentations/KingPDFTutorial.pdf

But as you can see it is a different format for the colour red. Will be a nightmare to try to work out the colours. Surely there would be a resource somewhere for colours?

valerioup · Mar 9, 2012

The library Santho Javier Domingo was last updated on 22/02/2012 adding object management bitmap image XObject.
PDFWriter can update the library so you can insert images into the document.
thanks

Harris · Mar 9, 2012

Awesome! I was praying for this...

Tomas, can you generate this lib again? Thanks go much...

XverhelstX · Mar 10, 2012

I'll add it this weekend.

Tomas

Sent from my SE Xperia Play using Tapatalk.

vb1992 · Mar 10, 2012

Nice.

Smee · Mar 11, 2012

Excellent!!

Thank you

Sriman · Mar 15, 2012

What are units of the fromLeft, fromBottom, toLeft etc values? Is there a way I can calculate that value rather than trial and error???

Also, I have not tried it yet but what happens if we add a text that is longer than a single line.. Would it automatically wrap to the next line?? And how would that wrapping work?

Harris · Mar 17, 2012

Also, I have not tried it yet but what happens if we add a text that is longer than a single line.. Would it automatically wrap to the next line?? And how would that wrapping work?[/QUOTE]

Text will not wrap, it will run off the page.

Harris · Mar 17, 2012

Tomas,
Were you able to locate the update code with xobjects? I had an issue trying to find it at first, but eventually did.
Thanks

XverhelstX · Mar 17, 2012

Hey Harris,

I'm quite busy at the moment with school, GIP's and exams.
I will see when i have the time to update this library.

Tomas

Harris · Mar 19, 2012

Ok, Thanks Tomas.

I remember those days, some 30 years ago....

Jost aus Soest · Mar 20, 2012

Visual Basic code

A long time ago I've developed a PDF class for Visual Basic:
VB-Tec / Workshops / PDF - PDF-Dokumente in purem VB erstellen
(This is a complete workshop in German.)

Maybe you can look in the code (ZIP file on www.vb-tec.de/clspdf) for hints, how to set colors, insert pics, etc. pp.

Before someone is asking:
No, at the moment I've no time to translate this to b4a. Personaly I wouldn't try while there are no classes in b4a...

BTW: There are also open source Java classes, which could be used in a b4a library...

timo · Mar 24, 2012

It seems that if you change the encoding (ISO-8859-1 to, for example,ISO-8859-16 ) it allways runs ISO-8859-1. Did you notice it?

Smee · Apr 6, 2012

Any update on inseting graphics/pictures yet?

XverhelstX · Apr 6, 2012

Updated to V1.1.

2 new methods added.

AddImage (left, top, bitmap)
AddImage2 (left, top, width, height, bitmap) - keep aspect ratio

Kind regards,
Tomas

Smee · Apr 7, 2012

great news. Cannot wait to try it out

Thank you Tomas

Harris · Apr 7, 2012

+ 1

Thanks Tomas

Harris · Apr 7, 2012

Works like a charm.

Now I have the all important signature added to the PDF.

Great work.

My reward shall be your reward.

Thanks

Smee · Apr 11, 2012

Hi,

Yep it works but the Rotation from the first library is no longer included

(Fonts.DEGREES_45_ROTATION)

Is this a permanent thing?

vb1992 · Apr 19, 2012

I think you can fix that just by hard coding the degrees as an int: 45

(i didn't test it yet.)

B4A Library PDFWriter

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