Web Scraping (HTML + PDF files) from site with CAPTCHA
Required skills: Web Scraping
Requirements:
We need a collection of scraped HTML and PDF files of firm data captured from a website that contains the ~850,000 records we need, but requires a CAPTCHA input after viewing many entities (one CAPTCHA every 10 records, approximately). There is one generated HTML file and one generated PDF for each of the ~850,000 records.
The individual entries have an accessible primary key which is unique per entity, so it's straightforward to not scrape duplicates.
Ideally, we'd like the data to be delivered either as a collection of .html and .pdf files named by this primary key, or a similar format (we're fine with a SQL dump containing the HTML linked to the individual record ids, etc).
To do this job effectively, ideally a system should be produced that can run in parallel, finding all the unique keys that will need to be scraped, then scraping the associated HTML page for each key and the associated PDF report generated from the server for each key.
The CAPTCHA may be solvable computationally (it is not a very complicated CAPTCHA). If it is not, it may be possible to use one of the APIs to human solvers like http://www.imagetotext.com/ -- if you propose to use a route like this, please provide us an estimate of the cost of using human CAPTCHA solvers -- you can think of them like sub-contractors.
Message us for the site information and to negotiate the contract.
We need a collection of scraped HTML and PDF files of firm data captured from a website that contains the ~850,000 records we need, but requires a CAPTCHA input after viewing many entities (one CAPTCHA every 10 records, approximately). There is one generated HTML file and one generated PDF for each of the ~850,000 records.
The individual entries have an accessible primary key which is unique per entity, so it's straightforward to not scrape duplicates.
Ideally, we'd like the data to be delivered either as a collection of .html and .pdf files named by this primary key, or a similar format (we're fine with a SQL dump containing the HTML linked to the individual record ids, etc).
To do this job effectively, ideally a system should be produced that can run in parallel, finding all the unique keys that will need to be scraped, then scraping the associated HTML page for each key and the associated PDF report generated from the server for each key.
The CAPTCHA may be solvable computationally (it is not a very complicated CAPTCHA). If it is not, it may be possible to use one of the APIs to human solvers like http://www.imagetotext.com/ -- if you propose to use a route like this, please provide us an estimate of the cost of using human CAPTCHA solvers -- you can think of them like sub-contractors.
Message us for the site information and to negotiate the contract.
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