哩次洩漏嘅文件總共有2.6太字節（TB），係史上最大嘅洩密案，相比之下2010年嘅維基解密中資料只有1.73吉位元組（GB）。歐伯馬爾對於文件點樣喺告密者轉交到佢手上嘅過程語有保留，咁大嘅文件冇辦法用電子郵件傳送、但以匿名嘅方式郵寄加密的硬碟非常容易。在取得文件後，國際調查記者同盟建立了一個需要二步驟驗證的網路資料庫。網址用加密的電子郵件寄給了全球各大報社中參與本次報導的記者。網站上還附有即時通訊功能，讓記者可以互相幫忙，協助解讀不同語言的文件，有些地區的記者也辦了會面。在一年多的整理過程中，有些外人得知了這個案件，但資料庫本身並未外流。因為文件中的許多人並不是公眾人物，而且也不一定涉及違法，國際調查記者同盟的主席表示他們不打算像維基解密那樣不負責任地把所有的文件公開，而會示範如何進行負責任的新聞報導。
The leak totaled 2.6 terabytes (terabytes), the largest leak in history, compared to the 1.73 gigabytes (GB) in WikiLeaks in 2010. Obermar had reservations about how the files were transferred to him by whistleblowers, and that such a large file could not be sent by e-mail, but it was easy to mail an encrypted hard drive anonymously. After obtaining the documents, the International Alliance of Investigative Journalists (CIC) created an online database that required two-step verification. The URL was sent in encrypted e-mail to journalists from major newspapers around the world who participated in the report. There is also an instant messaging feature on the website that allows journalists to help each other and help interpret documents in different languages, and in some regions reporters have also met with each other. In the process of sorting out the case for more than a year, some outsiders learned about the case, but the database itself was not leaked. Because many of the people in the documents are not public figures and do not necessarily involve violations of the law, the president of the International Union of Investigative Journalists said they do not intend to make all the documents public irresponsibly, as WikiLeaks did, but will demonstrate how to do responsible journalism.