How can I possibly unlock PDF for tablet?

How can I possibly unlock PDF for tablet?

Your question is very confusing. You said that those files are in zip format and inside it are PDF forms, right? But you are asking how to unlock a PDF file in your tablet. I am confused since what you need to unlock is the zip file and not the PDF files inside it. Am I correct? Anyway, I will just based my answer on your question. To unlock a secured PDF files in your tablet, you need to download Adobe Reader Touch. It supports password-protected PDF files. However, if those are DRM-protected PDF files, it won't work with Adobe Reader Touch. Try using the Adobe Digital Editions. It can help you manage protected PDF files from your computer to other devices.

How can I possibly unlock PDF for tablet?

If the RAR files (*.rar) you are saying contains all your PDF files, if they don’t contain a password or the files are not protected by a password, you can easily unpack them. Download 7-Zip File Archiver. It is a free file compressor similar to WinRAR and WinZip but the difference is that this one is totally free unlike the two.

With 7-Zip, you can unpack or extract compressed files like ZIP (*.zip) and RAR (*.rar) files. 7-Zip can extract the contents of the following compressed file formats: AR, ARJ, CAB, CHM, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RPM, SquashFS, UDF, UEFI, VDI, VHD, VMDK, WIM, XAR, and Z.

7-Zip supports Windows XP, Windows Vista, Windows 7, Windows 8.x, and Windows 10. Now, if you need the PDF files on your tablet, unpack the RAR files first on your computer and then transfer them to your tablet.