Topic: Tcpdi - i am having issues on placing signature image on specific coordinates

Posted by tarekas · 26-01-2024 - 13:52

I have 2 issues :

1- At first, I was using phpdocx-advanced, and the pdf conversion was working normal. When upgraded to phpdocx-14 , The pdf converted is giving a blank page. Is there anything wrong in loading TCPDF_Lib functions when upgraded to phpdocx-14?

2- Second, when going back to phpdocx-advanced and the pdf conversion works well, I need to place a signature image on the new pdf on specific coordinates.

The coordinates I gave to the function "Image" is : "x":361,"y":178

But the image is being placed in "x":339,"y":594

What is the problem in the coordinates placement? Is the coordiantes (0,0) from the bottom left or upper left?

Posted by admin · 26-01-2024 - 15:51

Hello,

Your username doesn't have any license tied. Please send to contact[at]phpdocx.com the username or email of the user that purchased the license you are using.

About your questions, please note the following:

phpdocx doesn't use TCPDF to transform DOCX to PDF. On https://www.phpdocx.com/documentation/conversion-plugin you can read all information about the available conversion plugins. We recommend check the conversion plugin you were using in your previous installation and use the same settings for the new installation.
To sign a PDF you need to use SignPDF or SignPDFPlus classes as detailed on https://www.phpdocx.com/api-documentation/digital-signature-package/digitally-sign-docx-pdf-with-PHP, not the TCPDF_Lib.php class. We recommend you check and run the samples included in the package (examples/DigitalSignature folder).
The same when merging PDF files. Instead of TCPDF_Lib.php, please use MultiMerge (https://www.phpdocx.com/api-documentation/docxutilities/merge-pdf-documents-with-PHP).

Regards.

Posted by tarekas · 27-01-2024 - 00:48

Thank you for you fast response.

Actually I took a look on SignPDF, and it looks like it also uses TCPDI to place image as a signature.

I tried it and also the Signature Image is being placed around 50px pixels less than the expected Y coordinate.

What would be the problem?

Posted by admin · 27-01-2024 - 09:14

Hello,

We have done some tests and the images are being added correctly in the choosen positions.

We recommend you test the following:

Test with another image/PDF. For example, using the sample included in the package.
Set width and height values.
Try setting x=0 and y=0, the image should be added in the left-top position of the page.

For further support please send to contact[at]phpdocx.com the username or email of the user that purchased the license you are using, and the simplest sample script that illustrates your issue (including a PDF and an image). We need to run this sample script, so please send a script that uses phpdocx standalone (without external resource such as databases, web services, frameworks...).

Regards.

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