Zig

Add XMP MetaData to JPG or TIFF

See more XMP Examples

Demonstrates how to add XMP metadata to a JPG or TIFF image that doesn't already have XMP metadata. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    const xmp = try chilkat.Xmp.init();
    defer xmp.deinit();

    // The first step is to create a new XMP document, which is nothing
    // more than XML.  The NewXmp method returns an XML document with
    // the standard XMP boilerplate.
    const xml = try xmp.newXmp();
    defer xml.deinit();

    // Add some properties...
    try xmp.addSimpleStr(xml, "Iptc4xmpCore:Chilkat", "Blah blah");
    // If you wish to view the XML, save it to a file and review it
    // with a text editor:
    xml.saveXml("newXmp.xml") catch {
        std.debug.print("{s}\n", .{try xml.getLastErrorText(alloc)});
        return;
    };

    // To add the XMP to the JPG (or TIFF), simply load the JPG,
    // append the XMP, and save:
    xmp.loadAppFile("scream.jpg") catch {
        std.debug.print("{s}\n", .{try xmp.getLastErrorText(alloc)});
        return;
    };

    xmp.append(xml) catch {
        std.debug.print("{s}\n", .{try xmp.getLastErrorText(alloc)});
        return;
    };

    xmp.saveAppFile("screamOut.jpg") catch {
        std.debug.print("{s}\n", .{try xmp.getLastErrorText(alloc)});
        return;
    };
}