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Stuart22022405d216
Participant
Dec 21, 2021 6:56 PM UTC
Answered

PDF Compression using Rest API

I have been attempting to compress PDFs using the rest api POST call - my issue is that no matter how I format the InputFile0, form-data field - the subsequent GET api call is saying that my file is corrupted however I am 100% confident that I am passing a valid PDF file - I have been attempting to compare results using postman on the same file, which works, but setting this field programmatically there is something I am missing:  I have tried all the formats in the FileReader object namely:  

readAsBinaryString, 
readAsDataURL, 
readAsText,
readAsArrayBuffer
None of them resolve the error - how is anyone else programmaticaly setting InputFile0 such the the server does not complain about a corrupted file ?
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Stuart22022405d216Correct answer
Participant
Dec 23, 2021 8:16 PM UTC

I found the problem - so this thread is resolved -- thank u

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7 replies

Raymond Camden
Community Manager
Raymond CamdenCommunity Manager
Community Manager
Dec 22, 2021 3:56 PM UTC

Could you share the code you are using, and possibly the PDF as well? (Note, Adobe is about to go on holiday break so we may be slow to respond.)

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Stuart22022405d216Author
Participant
Dec 23, 2021 6:39 PM UTC

Sure - the variable finalPdf is 100% a valid pdf file and I have attached the pdf file:  here is the code:

 

            reader.onload = function(ev) {
                var formData = new FormData();
                               
                formData.append('contentAnalyzerRequests',
                    JSON.stringify(
                        {
                            "cpf:inputs": {
                                "params": {
                                    "cpf:inline": {
                                        "compressionLevel": "HIGH"
                                    }
                                },
                                "documentIn": {
                                    "cpf:location": "InputFile0",
                                    "dc:format": "application/pdf"
                                }
                            },
                            "cpf:engine": {
                                "repo:assetId": "urn:aaid:cpf:Service-f37d36f4e6724eed92149a8ff35ea061"
                            },
                            "cpf:outputs": {
                                "documentOut": {
                                    "cpf:location": "multipartLabelOut",
                                    "dc:format": "application/pdf"
                                }
                            }
                        }                        
                    ));
//&?
debugger
                formData.append('InputFile0', ev.target.result);

                $.ajax({
                    type: 'POST',
                    cache: false,
                    data: formData,
                    processData: false,
                    contentType: false,
                    enctype: 'multipart/form-data',
                    headers: {
                        'Prefer': 'respond-async,wait=0',
                        'Authorization': 'Bearer ' + APIKEY,
                        'Accept': 'application/json, text/plain, */*',
                        'x-api-key': 'f05e4d2e20fb43b3bf390925a1e3253e',
                    },

                    success: function(res, stat, xhr) {
//&?
debugger
                        $.ajax({
                            type: 'GET',
                            processData: false,
                            contentType: false,
                            url: xhr.getResponseHeader('location'),
                            headers: {
                                'Authorization': 'Bearer ' + APIKEY,
                                'x-api-key': 'f05e4d2e20fb43b3bf390925a1e3253e',
                            },

                            success: function(data) {
//&?
debugger
                            }
                        });
                    }
                });

            };


            var pdffileBlobContract = new Blob(new Uint8Array(finalPdf), {type: 'application/pdf'});

            reader.readAsArrayBuffer(pdffileBlobContract);
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Stuart22022405d216AuthorCorrect answer
Participant
Dec 23, 2021 8:16 PM UTC

I found the problem - so this thread is resolved -- thank u

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