Reading pdf in rails error "Input must be an IO-like object or a filename error on"

Question

I'm trying to read a pdf file in rails using pdf-reader gem of rails. Here is my code

<%
reader = PDF::Reader.new('/uploads/pdf/pdf_1.pdf')
puts reader.pdf_version
puts reader.info
puts reader.metadata
puts reader.page_count
%>

There problem is in loading the PDF file. Also I can access my PDF using this url http://localhost:3000/uploads/pdf/pdf_1.pdf

This is the error I'm getting:

input must be an IO-like object or a filename

IDK what I'm doing wrong. Any help will be greatly appreciated.

Seems like it tries to get file `/uploads/pdf/pdf_1.pdf` from root of your system, not from root of your web-app. — Yevgeniy Anfilofyev, Jun 21 '13 at 11:54

Yevgeniy Anfilofyev · Answer 1 · 2013-06-21T12:14:35.603

3

Try to use:

reader = PDF::Reader.new(Rails.root.join('uploads/pdf/pdf_1.pdf'))

And if you want to display it on page you should do something like:

<% reader = PDF::Reader.new(Rails.root.join('uploads/pdf/pdf_1.pdf')) %>
<%= reader.pdf_version + reader.info + reader.metadata + reader.page_count %>

edited Jun 21 '13 at 12:14

answered Jun 21 '13 at 12:00

Yevgeniy Anfilofyev

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Still same error.Btw I tried using the full path "/home/workspace..." and there was no error but it weren't outputting anything. – Sachin Prasad Jun 21 '13 at 12:04
So you should use full path, don't know why `Rails.root...` doesn't help to get it. And where do you expect to see output? On console? You could try to create simple script to play with this file... – Yevgeniy Anfilofyev Jun 21 '13 at 12:08
Actually I'm trying to view its data on a view file.I need to find how to make it load relatively, btw thanks for your help. – Sachin Prasad Jun 21 '13 at 12:11
Updated a bit to proper erb – Yevgeniy Anfilofyev Jun 21 '13 at 12:15

Reading pdf in rails error "Input must be an IO-like object or a filename error on"

1 Answers1