CODEWITHSUNDEEP
amazon-web-servicesamazon-s3
dominicbri7
dominicbri7

Reputation: 2599

Force S3 PDF to be viewed in browser instead of download

So you can force a download by using Content-Disposition: attachment

Content-Disposition: inline is the default and should display in the browser, and it does in fact work with most files like PNG, JPG, etc.

But for some reason somehow when generating a presigned URL from S3, PDF files will always force download even if I don't use the content-disposition: attachment header.

I want to be able to make the PDF open in the browser when the browser allows it

I am using the presigned URL generate call from S3 client http://docs.aws.amazon.com/AmazonS3/latest/dev/ShareObjectPreSignedURLJavaSDK.html

Upvotes: 27

Views: 46135

Answers (5)

Salik Mohammad
Salik Mohammad

Reputation: 341

For those who are likely to make camel casing mistakes very often. Please check the Camel casing of the ContentType and ContentDisposition.

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Upvotes: 1

Eldho T Kuriakose
Eldho T Kuriakose

Reputation: 104

You have to set your putObject params as follows to view pdf instead of download.

 params = {
        Bucket: process.env.S3_BUCKET,
        Key: <fileName>,
        Body: <fileContent>,
        ContentDisposition:"inline",
        ContentType:"application/pdf"
    };

Upvotes: 7

Sai
Sai

Reputation: 309

You need to provide both these meta data inorder to view the file instead of download:

Content-Disposition: attachment
Content-Type: application/pdf

Upvotes: 0

Kush Vyas
Kush Vyas

Reputation: 6109

Check you file's metadata and remove Content-Disposition entry from that file. and set content type according to the file type.

Like for text file Content-Type='text/plain'

image png Content-Type='image/png'

pdf Content-Type=application/pdf

pdfxml Content-Type=application/vnd.adobe.pdfxml

If your file's Content-Type is binary/octet-stream then it will download instead of display.

Thanks

Upvotes: 46

Mark B
Mark B

Reputation: 201138

You also need to set the Content-Type correctly. The browser will check the content-type value, and if it isn't something it knows how to display it will always just download the file.

Upvotes: 2

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