FPDI | FPDI is a collection of PHP classes facilitating developers to read pages from existing PDF document

I am trying to learn how to edit a PDF file with FPDF and FPDI using PHP language. I have this sample PDF file where I want to insert some values. If I were to create a PDF file using FPDF, everything works fine. But if I try to edit an existing PDF file using FPDI, it gives me the following error message: This page isn’t working. Failed to load resource: the server responded with a status of 500 ( ). crbug/1173575, non-JS module files deprecated. The following shows two programs for editing PDF files. The first one works and the second one fails.

I am using TCPDF to add an image watermark to my existing pdf. Only a few of the pdf files are loading the watermark properly (2nd image) and some of them do not support a watermark image (1st image). Also, I want to remove the watermark from the last page of the generated pdf. I am sharing a pdf sample without a watermark.

Following the code, used to create a watermark image to exiting pdf. I have created a library to add a header() and footer(). Why is it working fine in some PDF and others not?

I have a pdf template that I write English letters on it and it works fine.

I've got a PDF file on my server, and I want to use it as parameter for this function:

$fpdi->setSourceFile()

The problem is that the link used as a source redirects to another URL and I don't know the final URL. It seems that setSourceFile needs the real PDF filename. Is there a way to get the final URL, and then pass it as parameter?

I have set font size for over all pdf to 10, Question is if I want to change the font size for the specific area of pdf without changing the font size over all, can it be done? See below code, I want to change the font size in these area $pdf->SetXY(17, 80) ;

I am working on a PHP project. I need to generate the PDF using the FPDF library, http://www.fpdf.org/ in my application. But I am having an issue with embedding the logo image in the header for every page.

Here is my code:

Edit: Updated after assistance from Jan

Edit: The code dos not fail until $mpdf->Output($max . ' imports .pdf', 'D'); is called

PHP Version 7.1

MPDF Version 8.0.10

Setasign fpdi_pdf-parser Version 2.0.4 Error

Failed to open file (fopen) Compnay Induction (checklist) th v2.pdf Failed to open file (fopen) Information Register for Employees.pdf Failed to open file (fopen) Coshh listings v7.pdf Failed to open file (fopen) Emp Competency Form.pdf

Below is a snippet of my code which produces the error

Laravel Package: "setasign/fpdi": "^2.3", "setasign/fpdf": "^1.8"

I'm using TCPDF to create PDF files from php files. Works all fine. Now I want to add an additional page using an existing .pdf file from the server.

Best method to do so is using FPDI afaik.

But I can't find any Docu or working example on how to setup FPDI within TCPDF to add a Page. All I see is how I use an external pdf as header or background etc.

like this one https://www.setasign.com/products/fpdi/about/

What I have in TCPDF: