In this article, I will show you one method of checking PDF detail information without opening PDF files. The way of checking PDF basic information is through checking PDF metadata. Metadata provides additional information about a certain file, such as its author, creation data, possible copyright restrictions or the application used to create the file. The software I use here is a kind of cloud based application named VeryPDF PDF Metadata Manager Cloud API, which allows you Extract or Insert Title, Author, Subject, Keywords, Creator, Producer, Created Date, Modified Date from/to PDF files. Please check more information of this software on homepage, in the following part, let us check how to use this software.
Step 1. Know the principle of how PDF Metadata Manager Cloud API works.
- When you use VeryPDF cloud application, first please register an account on registration page. Then choose a method of paying for this software, you can pay for it per month or per year then you can use all the VeryPDF cloud applications the whole month or year. Once you finish paying, the code will be sent to your email box at once.
- Once you purchase a plan, you can use your APIKEY to access all of VeryPDF Cloud APIs, include 20+ APIs and 200+ parameters.
Step 2. Know PDF details through checking PDF metadata
- When you use this cloud API to check PDF metadata, you do not need to download any software or install any third party application. Simply make sure the website connection is good and open any browser then copy the following URL to browser, you can check PDF metadata. Here is an URL for your reference:
http://online.verypdf.com/api/?apikey=XXXX-XXXX-XXXX-XXXX&app=pdfinfo&infile=http://online.verypdf.com/examples/cloud-api/verypdf.pdf
Please note the above URL, if you simply copy the above URL to browser, there will be watermark on output file. Here is just a trial example. When you do real checking, please replace the API code to the real code in your email box. change the online example PDF URL to the real URL of the PDF file you need to check PDF metadata. Then you will get the following basic information:
Title: VeryPDF
Creator: VeryPDF
Producer: VeryPDF
CreationDate: D:20130712095842-04'00'
Tagged: no
Form: none
Pages: 1
Encrypted: no
Page size: 595 x 842 pts (A4)
MediaBox: 0.00 0.00 595.00 842.00
CropBox: 0.00 0.00 595.00 842.00
BleedBox: 0.00 0.00 595.00 842.00
TrimBox: 0.00 0.00 595.00 842.00
ArtBox: 0.00 0.00 595.00 842.00
File size: 203433 bytes
Optimized: no
PDF version: 1.4
By those basic information, you do not need to open PDF then you can check PDF basic information. This method is excrementally good when opening PDF is unavailable but you need know what this PDF is about. During the using, if you have any question, please contact us as soon as possible.