Nowadays, no matter what the job is, the use of PDF files is indispensable. There are countless kinds of PDF files. Sometimes our PDF files may be stolen by others, so many users want to know if there is a way to protect our rights and interests. So, we thought of adding watermarks to PDF files, but
Memandangkan orang ramai menghargai keselamatan dokumen pdf, ia telah menjadi popular untuk menggunakan tera air pdf. Secara umumnya, tera air adalah sejenis perkara ajaib, yang tidak boleh dipadamkan tanpa perisian profesional. Ramai orang lazimnya meletakkan karya mereka yang memuaskan di Internet
When we usually download materials on the Internet, we often see watermarks on the materials. In fact, the author added it to protect his copyright. For the pdf documents we use more, we also need to add watermarks, because This can prevent others from misappropriating, but many friend
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