The cost-free version of FPDI carries out certainly not support a compression attribute introduced in PDF 1.5. Anyhow our company offer an industrial add-on which adds assistance for this: The FPDI PDF-Parser.
Today, in a much bigger app of mine, as a sub-project, I’m making an effort to ‘defend’ exported PDFs through administering a watermark (nothing complicated, merely an easy part of text at the center of each page, or even something).
The standard circulation would certainly be actually
PDF is downloaded into a directory all set for accounts to method
Funds process the PDF
An invoice variety is actually instantly produced
Statement variety is watermarked onto the PDF and also the PDF is actually relocated to a processed directory
It likewise permits you to incorporate brand-new content to PDF documents which are actually additionally encrypted/protected. This may be performed by validating with the manager password or even through bypassing the stipulation (we can easily deliver assistance for this, if we know what you are performing specifically by means of our help network).
I haven’t managed to discover a way of performing this either by means of PHP or even through utilizing a Linux demand (Using PHPs shell_exec functionality). Yet another problem is actually that sometimes the PDF is encrypted as well as needs to have a code to become modified which our experts will not know.
BUT: Specifically for watermarking our team deliver yet another item (not free of cost!) that is created precisely for such objective: The SetaPDF-Stamper element.
I require to incorporate a compelling watermark to my PDF document making use of C#.
E.g: When a client carries out decline the conditions of a particular document (which is a banner from database), I need to have to possess a watermark “Denied” on the pdf. This watermark should be actually 45 levels spun.
The following code incorporates a watermark of the indicated image at the facility of the pdf page. I wish the image to be actually redoed as the watermark on the whole entire pdf page rather of merely being actually at the. The watermark needs to duplicate the technique background-repeat home operate in css.
You may make use of the CoreGraphics platform for changing PDF content – check out Apple’s main paperwork on the subject matter.
You may incorporate an image seal on a PDF page through using embedded loop. Below code bit clarifies how you can easily duplicate the watermark on entire page of a PDF document.
So I have actually developed a PHP resource which enables our profiles team to control PDFs. Once they are completed customizing a PDF they desire to be capable to add a watermark which will certainly be its Statement variety. If the PDF is actually model 3 for some main reason, I was using a PHP collection named FPDF yet this neglects.
Anyhow, neither FPDI nor the FPDI PDF-Parser help analysis of encrypted/protected PDF documents.
Some information to the factors you would certainly made use of before: FPDF can not manage existing PDFs, so I presume you will used FPDI in combination with FPDF to re-create the first document.
Each one of which works up until we come to the watermarking.