smalot / smalot/pdfparser

Get Specific text Y Coordinates

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PHP
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Description

As the title says, is it possible to get Y Coordinates for specific text in pdf?

Here is my code for now:

use Smalot\PdfParser\Parser;
use Illuminate\Http\Request;
use setasign\Fpdi\Fpdi;

public function mergePdfWithSignature ($id, Request $req) {
        $pdfFile = storage_path('app/public/agreement/' . $id . '.pdf');
        if (File::exists(public_path('merged/' . $id. '.pdf'))) {
            File::delete(public_path('merged/'. $id. '.pdf'));
        }

        $parser = new Parser();
        $pdf = $parser->parseFile($pdfFile);
        $pdfContent = $pdf->getPages();
        $pagesWithSignature = [];

        foreach ($pdfContent as $pageNum => $page) {
            $text = $page->getText();
            if (preg_match('/Signature :/i', $text)) {
                $pagesWithSignature[] = [
                    'page' => $pageNum,
                    'text' => $text
                ];
            }
        }

        if (empty($pagesWithSignature)) {
            return \sendResponse('Something went wrong', 404);
        }

        $signature = $req->signature;
        $fpdi = new Fpdi();

        foreach ($pagesWithSignature as $pageData) {
            $page = $pageData['page'];
            $text = $pageData['text'];
            $tempImagePath = storage_path('app/public/signature/'. $id. '.png');
            $fpdi->setSourceFile($pdfFile);
            $template = $fpdi->importPage($page + 1);

            $fpdi->addPage();
            $fpdi->useTemplate($template);
            preg_match('/Signature :/i', $text, $matches);
            $signPos = $matches[0];
            $posX = $fpdi->GetStringWidth($signPos);

            $x = 50; // Adjust the horizontal position as needed
            $y = 50; // Adjust the vertical position as needed

            $image = Image::make($signature);
            $image->save($tempImagePath);
            $imageWidth = $image->width();
            $imageHeight = $image->height();

            $textWidth = strlen('Signature :') * 4;
            $textHeight = 10;

            $fpdi->Image($tempImagePath, $x + $posX, $y, 20, 10, 'PNG');
        }

        $pageCount = $fpdi->setSourceFile($pdfFile);
        for ($pageNum = 1; $pageNum <= $pageCount; $pageNum++) {
            if (!in_array($pageNum, array_column($pagesWithSignature, 'page'))) {
                $template = $fpdi->importPage($pageNum);
                $fpdi->addPage();
                $fpdi->useTemplate($template);
            }
        }

        $mergedPdfPath = public_path('merged/' . $id. '.pdf');
        $fpdi->Output($mergedPdfPath, 'F');
        // \DB::table('activation_signature')->where('invoice_id', $id)->where('status', 0)->update(['status' => 1]);

        return response()->download($mergedPdfPath);
    }

I am Combining this library with Setasign/FPDI
Thank you

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing Parser::parseFile(), Page::getPages(), and Page::getText() in the example, then determine whether the library exposes positional information for matched text. Compare the requested coordinates with the Setasign/FPDI integration and define the expected page, text, and coordinate output before considering implementation or tests.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
backend
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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