How to batch remove watermarks for PDF documents

The internet age is a shared age. We often download some files and materials from the Internet, is it true that PDF files on some websites often contain watermarks or URL links of the website? Next we will talk about how to dewatermarking.

Watermarks on a single pdf page can be easily removed, for example, with Foxit PDF editor. However, if you want to remove watermarks from PDF files in batches, you need to use these two software: Adobe Acrobat 8 Professional and pitstop plug-ins. The following describes how to install the above two software.

(1) Direct watermark Removal Method

It mainly targets PDF files created by Acrobat. The method is acrobat's menu bar ------- document ------ watermark ------ Delete, then this method can clear the watermark. As follows:

If the following dialog box is displayed, this method cannot clear the watermark.

However, we can also try two steps: (1) Document -------- background -------- Delete; (2) Document -------- header and footer -------- Delete; if you have removed the watermark using these steps (these steps are used to clear the watermark in batches), remember to save the watermark. If the watermark cannot be removed through these steps, proceed with the following operations.

(2) Use pitstop pro

Pitstop pro is an enhanced plug-in developed by enfocus for Adobe Acrobat Pro. After pitstop is installed, a row of pitstop-related buttons will appear on the acorbat toolbar. In the first step, select the "select object" button (the red box on the middle left ), after the watermark is selected, you can proceed to the next step to select the watermark.

Select the "show global changes" button in the pitstop toolbar above.

Next, select the "show global changes" button, the following interface will appear, select "delete beta test area" in the red box, and then select the next step shown in the red box below.

Then, the interface shown is displayed. Click the "define region border from" button shown in the red box. The work here specifies the area for deleting content on the page. If no selection is made, the last selected region is used.

The page shown is displayed. You can select the application range, including single page, all pages, odd page, and even page. If the watermark is available on all pages of the document, you do not need to modify it here. Click "process.

Later, we can see that acrobat is being processed. After processing, the interface is closed. Remember to save all the watermarks after they are processed.

When using this method, you may encounter a special watermark superposition method, which does not work when the above object is deleted as "text". In this case, you can try the other three options below. "Vector graph" can solve this problem sometimes when deleting objects. After deletion, remember to save it as a file. Otherwise, it is easy to get stuck in the process of saving files.

(3) The above is the method for changing the "delete inner region". For some watermarks, it is not an area but a font, such as "Novatek confidential, at this time, you need to go to several texts. You only need to change the gray RGB font to white (that is, the same as the background) to remove the watermark. Follow these steps to change the color:

If the color obtained from the watermark font is gray (r200 G200 b200), the color of the modified object is modified. As follows:

The other steps are the same as step 2.

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Add the registration methods for the two software.

(1) Adobe registration method: Open the Adobe Acrobat 8.1.2 professional you have installed and enter the activation interface. Click the phone number to activate it. Then you can see your registration number and activation number. The authorization code is required. Now you open the downloaded registration machine, copy your activation number (including the interval symbol) to the text box under generate serial of the registration machine, and click the active button below, then you get the authorization code you want. Enter the authorization code and Click Activate.
(2) pitstop Cracking Method: Download The enfocus pitstop Installation File and install it. After successful installation, enable and disable acrobat once. Then delete the following files: C:/program files/Adobe/acrobat 9.0 (this can also be 7 or 8)/plug_ins/enfocus/resources/ipworks6.dll, C: /Documents and Settings/User Name (generally addministrator)/Application Data/enfocus prefs Folder/pitstop professional/pp7eskf (hide files ). Open acrobat again, and enter the following enfocus in the pitstop pop-up window
Pitstop serial number: SN: PG0C1-oPn00-EZm7B-8BdH8-4ZoX8, username and organization number.

 

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