81 results for how to prevent pdf file from copying
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How to insert a watermark in a PDF file01:47
How to insert a watermark in a PDF file
We use powerful PDF in our daily life nearly everyday. We often see unique watermarks printed on the back of some files. Adding a watermark can not only prevent others from embezzling but also can help us to indicate the source of the article.You can use the “insert watermark” feature of WPS Premium. Take this PDF as an example. Click the Insert tab, then click Watermark. WPS Office has provided us with some preset styles. We can click to use them directly. We can also customize the wa....
How to insert or delete pages in a PDF file01:19
How to insert or delete pages in a PDF file
How can we insert or delete pages of the original file when editing a PDF file?Take this file as an example. Click the Page tab, then click the Insert Pages drop-down menu. Here, we can choose to insert a Blank page. Its shortcut key is Ctrl+Alt+I.In the popup dialog box, we can set the size, direction, number, and insertion position of the new page. Click OK to insert a blank page.We can also create a new page from the file by Select from PDF. Its shortcut key is Ctrl+Alt+T.After sel....
How to insert a signature in a PDF file02:16
How to insert a signature in a PDF file
We use powerful PDF in our daily life nearly everyday. WPS pdf converter is easy and free for people to use.Nowadays, electronic information technology is developing rapidly. Many companies have adopted paperless contracts, and we often need to sign a contract or agreement on an electronic device. Now we have received a PDF contract from another company, and we need to sign it. So how can we insert a signature in the PDF file?1. Click the Insert tab, and then click the Sign drop-down m....
How to highlight the content of a PDF file02:04
How to highlight the content of a PDF file
When reading the PDF file, we sometimes may encounter some critical text content. To facilitate our reading, we can highlight the needed text. Today, we will show you how to use the highlighting feature of the PDF. Take this PDF file as an example. Click the Comment tab, then click the Highlight drop-down menu. Here, select the color we like, then the selected text will be highlighted.If we want to highlight an area, we can use the area highlighting feature. Click the Highlight Area dr....
How to extract and replace the page content of a PDF file01:23
How to extract and replace the page content of a PDF file
When we are editing a PDF file, what should we do if we want to extract and replace several pages of the content?We can use the Extract Page and Replace pages functions of WPS Premium. If we want to extract the third page of this file and save it separately as a PDF file, click the Page tab, click Extract Page. In the Extract Mode box, select Extract selected page to PDF. In Page range, enter 3.We can add a watermark to the file, and we can also name the newly output file and set the s....
How to add a stamp in a PDF file01:42
How to add a stamp in a PDF file
We use powerful PDF in our daily life nearly every day.In our daily work and study, we can insert a stamp in the PDF file to indicate that the file has already been reviewed.Now we are going to introduce the Stamp WPS Premium feature.Click the Comment tab and then click Stamp. Here, WPS has provided us with a large variety of presets. We can click the needed stamp style and place it in the appropriate area of the page. We can also customize the stamp. Click Click to Add, then the Add S....
How to edit a picture in a PDF file01:54
How to edit a picture in a PDF file
When editing a PDF file, do you know what to do if you want to make a secondary modification to the picture on the page?Go to WPS Premium, and you will be able to use the editing feature. Take this document as an example. Click the picture you want to modify, then a small icon will appear in the upper right corner of the picture. Click it to enter the picture editing mode.At this point we use the mouse to drag the picture to move its position. As we move the picture, auxiliary lines wi....
How to lock a PDF file from editing?
1. Open your document in WPS PDF.2. Click the Protect tab > Encrypt.3. Check Set the password of editing and extracting, which protects this document from being edited and extracted. Then input the password, confirm the password and select the functions to encrypt as needed. Then click Confirm. 4. When someone need to edit it, he or she needs to input the password first. To be office specialists, you could learn how to use WPS Office online in WPS Academy.