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Home/ Questions/Q 3782726
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Editorial Team
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Editorial Team
Asked: May 19, 20262026-05-19T11:07:25+00:00 2026-05-19T11:07:25+00:00

I am doing: header(‘Content-type: application/pdf’); header(‘Content-Disposition: inline; filename=the.pdf’); header(‘Content-Length: ‘ . filesize($file)); @readfile($file); and

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I am doing:

header('Content-type: application/pdf');
header('Content-Disposition: inline; filename="the.pdf"');
header('Content-Length: ' . filesize($file));
@readfile($file);

and it works fine. The PDF opens in the browser.

Can I do an if-then-else before? I tried and I get raw PDF

%PDF-1.2 9 0 obj << /Type/Font /Subtype/Type1 /Name/F1 /FontDescriptor 8 0

Why is the if-then-else changing the headers?

thanks.

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  1. Editorial Team
    Editorial Team
    2026-05-19T11:07:26+00:00Added an answer on May 19, 2026 at 11:07 am

    It would be helpful if you posted exactly what is your if-then-else code. My guess is you have some whitespace output before the headers are outputted.

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