Generate a PDF from an image in Flutter

To convert an image to a PDF, follow the steps below.

Create a PdfImagePage object to specify the location of the image and instructions for compression.
Create a NewPage object to specify the page size and the previously created PdfImagePage object.
Call the PspdfkitProcessor.generatePdf() method with the following parameters:
- A list of NewPage objects.
- An outputFile parameter specifying the location where to save the generated PDF.

Generate PDFs from images

The following code demonstrates how to create a PDF from an image:

// Image file from which to generate the PDF.
File img = File('<readable-image-path>');

// File path where the generated PDF will be saved.
String outputPath = '<writable-output-file-path>';

// A list of PDF pages from the image URI.
List<NewPage> pages = [
    NewPage.fromImage(
        PdfImagePage.fromUri(img.uri, PagePosition.center)),
    NewPage.fromImage(
        PdfImagePage.fromUri(img.uri, PagePosition.center)),
];
// Generate a PDF from an image and save it at `[outputPath]`.
var filePath = await PspdfkitProcessor.instance.generatePdf(
    pages, outputPath); // Or `generatePDFFromImage`.

For more information on generating PDF files from HTML strings and URLs, see the PspdfkitProcessor documentation and the PDF Generation Example from the Catalog app.