PDF file functions

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PDF file functions

Remark: These functions are also available in prefix syntax (PDF file functions (prefix syntax)).

WLanguage includes different types of variables to manipulate PDF files:


pdfAttachment	The pdfAttachment type is used to define all the advanced characteristics of an attachment in a PDF document.
pdfDocument	The pdfDocument type gets all the characteristics of a PDF file: author, date created, page content, etc.
pdfPage	The pdfPage type is used to define all the advanced characteristics of a page from a PDF document loaded in memory.
pdfParameter	The pdfParameter type defines all the characteristics of the PDF file to be generated.
pdfSignature	The pdfSignature type is used to define the advanced characteristics of the signature that will be applied to a PDF file when signing an existing PDF (via PDFSign).
pdfTextElement	The pdfTextElement type is used to find out all the characteristics of a text element in a PDF page.

The following functions allow you to manipulate PDF files using these variables:


PDFAddImage	Adds an image to a page in an existing PDF file.
PDFAddWatermark	Adds a watermark to all or some pages of an existing PDF file.
PDFClose	Closes the PDF file loaded in memory in a pdfDocument variable.
PDFExtractPage	Extracts a page from a PDF file in a variable of type Image.
PDFGetSignature	Gets the signature of a PDF document as a buffer.
PDFGetSignatureDate	Gets the date of one of the signatures of a PDF document.
PDFNbSignatures	Gets the number of signatures in a PDF document.
PDFOpen	Opens a PDF document and loads it in a pdfDocument variable.
PDFSave	Saves the content of a pdfDocument variable in a ".PDF" file.
PDFSign	Applies an approval signature to an existing PDF.
PDFToText	Extracts text from a PDF file.

Remark: The following functions can be used to manipulate PDF files directly:


PDFExtractPage	Extracts a page from a PDF file in a variable of type Image.
PDFIsProtected	Checks whether the PDF file requires a password in order to be read.
PDFMerge	Merges several existing PDF files into a single PDF file. The files are merged one after another. The paths of PDF files can be found in an array.
PDFMergeWithPassword	Merges several existing and password-protected PDF files into a single PDF file.
PDFNumberOfPages	Returns the total number of pages found in a PDF file.
PDFPassword	Protects a PDF document with a password.
PDFSign	Applies an approval signature to an existing PDF.
PDFToText	Extracts text from a PDF file.

Related Examples:

Unit examples (WINDEV): PDFDocument type

[ + ] This example shows how to use the pdfDocument WLanguage type.
This type is used to handle PDF files by programming.
You can:
- Retrieve the details of the PDF file (Created, Modified, Author, etc.)
- Retrieve the text of the PDF file (page by page and line by line)
- List / Add / Delete attachments