How to Split PowerPoint PPTX Presentations into Separate Documents using C/C++

It’s far easier to manage our file processing tasks programmatically when we can depend on well-designed libraries and API services. Using the below code, we can easily take advantage of a free API solution that splits our PowerPoint PPTX documents into separate files — exactly one document per page of the original presentation.

To structure our API call, let’s start by installing libcurl in our project:

libcurl/7.75.0

After that, let’s copy the below ready-to-run examples into our file and supply a free-tier API key in the authorization field:

CURL *curl;
CURLcode res;
curl = curl_easy_init();
if(curl) {
     curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "POST");
     curl_easy_setopt(curl, CURLOPT_URL, "https://api.cloudmersive.com/convert/split/pptx");
     curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
     curl_easy_setopt(curl, CURLOPT_DEFAULT_PROTOCOL, "https");
     struct curl_slist *headers = NULL;
     headers = curl_slist_append(headers, "returnDocumentContents: <boolean>");
     headers = curl_slist_append(headers, "Content-Type: multipart/form-data");
     headers = curl_slist_append(headers, "Apikey: YOUR-API-KEY-HERE");
     curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
     curl_mime *mime;
     curl_mimepart *part;
     mime = curl_mime_init(curl);
     part = curl_mime_addpart(mime);
     curl_mime_name(part, "inputFile");
     curl_mime_filedata(part, "/path/to/file");
     curl_easy_setopt(curl, CURLOPT_MIMEPOST, mime);
     res = curl_easy_perform(curl);
     curl_mime_free(mime);
}
curl_easy_cleanup(curl);

That’s all there is to it — no more code required!