If the PDF was scanned, it was likely created as an image file as opposed to a text file. You'll need to use an OCR (Optical Character Recognition) program to convert the image into selectable text. Google Drive includes a free OCR service when uploading PDFs, and will work fine in most cases. If the PDF is also copy-protected, Google Drive can remove the security from the PDF during the OCR process. Go to https://drive.google.com/ in your preferred web browser. This will open your Google Drive page if you're logged in. If you aren't logged into a Google account, enter your Google email address and password before proceeding. It's a blue button in the upper-left corner of the Drive page. A drop-down menu will appear. This option is near the top of the drop-down menu. Clicking it prompts a new window to open. Click the PDF file that you want to use. You may first have to click the PDF file's location on the left side of the window. It's in the bottom-right side of the window. Doing so will prompt the PDF file to upload to Google Drive. Once the PDF file finishes uploading into Google Drive, click the PDF to select it. It's at the top of the page. A drop-down menu will appear. This option is near the top of the drop-down menu. A pop-out menu will pop out next to it. It's in the pop-out menu. This will prompt Drive to scan the PDF's text into a Google Doc, which can take a while depending on the amount of text in the file. Google Drive's OCR software isn't perfect, and there may be some errors or parts of the text that couldn't be converted. You may encounter a lot of white space between sections, so keep scrolling to see everything that was converted. If you run into any errors, consider fixing them in Google Docs before copying the text. Click Edit in the upper-left side of the page, then click Select all in the drop-down menu. Click Edit again, then click Copy. Usually, you'll want to open a program such as Microsoft Word, Pages, or Google Docs. You can use a text editor like Notepad or TextEdit as well, but the PDF's formatting won't be preserved if you do this. Press Ctrl+V (Windows) or ⌘ Command+V (Mac). You should see the text from the PDF appear in the document.  If pressing the keys doesn't work, click the document's blank page and try again. You can also right-click the page and click Paste in the drop-down menu.
यदि आपके पीडीएफ में, टेक्स्ट इमेज के तौर पर एनकोडेड हो तब इस विधि का इस्तेमाल करें: गूगल ड्राइव खोलें: NEW पर क्लिक करें: File upload क्लिक करें: अपनी पीडीएफ फाइल चुनें: Open क्लिक करें: अपलोड हुई पीडीएफ फाइल को चुनें: ⋮ क्लिक करें: Open with चुनें: Google Docs क्लिक करें: टेक्स्ट के कन्वर्ट होने की जाँच करें: टेक्स्ट चुनें: टेक्स्ट कॉपी करें: एक नया डॉक्यूमेंट खोलें: कॉपी किये हुए टेक्स्ट को पेस्ट करें: