If you need to remove the watermark, go to the original document that created the PDF file and remove it from there. The question is if this is an Acrobat watermark or a watermark stamped on a graphic element used within the PDF file (which could make this a Photoshop issue with a stretch of the. Add watermarks to PDFs in Adobe Acrobat DCTo remove watermarks from multiple PDFs, close any open PDFs and choose Tools >Edit PDF >Watermark >Remove. In the dialog box that appears, click Add Files, choose Add Files, and then select the files. Click OK, and then in the Output Options dialog box, specify your folder and filename preferences.
The artifacts of the stamp are that you can delete it within Adobe Acrobat Pro, however it regenerates on a mouse-move because the stream object keeps it persistent. If you try to edit the pdf source - which is tricky, there's a chance that the file will be corrupted. If the stamp is a stream, we can interrupt it by disconnecting the computer from the Net, which I did. Then using the Adobe Acrobat Pro, I selected one of my annotations, right-clicked to get the popup, and selected 'Show Comments List'. Select the nefarious watermark/stamp from the List, right-click to get the popup and select 'Delete'. Do this on every page where the affixation occurs.
Save the File under another name. Buku Saku Yasin.pdf. My application crashed, but not before saving the file!
Open the new & much smaller file; note that all the watermarks/stamps are gonzo. In my case, the file size of my 3-page document shrank from 300 kb down to an impressive 60 kb. All the original data and annotations remained intact - sans the watermarks.
~Good hunting:o). This is a supplement to @Dennis' answer of 18:06 30 Jul 2012. He certainly addresses the harder case. In the simplest case where the watermark is simple, unadorned text, for example Smedley For Commissioner the uncompressed PDF watermarks might be defined like this: BT 75.96 625 Td (Smedley For Commissioner)Tj ET where 75.96 is the horizontal offset and 625 the vertical offset for this particular watermark instance. (Yes, both real numbers and integers may be seen.) A regexp like the following will work for all such watermarks, ignoring any variations in their placement: ^BT n[0-9.]+ [0-9.]+ Td n (Smedley For Commissioner )Tj nET n Be aware, tho, that a variety of modifying PDF operators can come into play with watermarks that have more complicated formatting. Such fanciness can transform what the reader expects (hopes?) to be a contiguous, easily-searched-for string into a mess of alphabet soup.
For example, E 1 = mc² by Smedley™ Might be the product of this: BT 75.96 625 Td (E)Tj -5 Ts (1)Tj 0 Ts ( = mc)Tj 5 Ts (2)Tj 0 Ts (by Smedley)Tj 5 Ts (TM)Tj 0 Ts ET... Or far worse if your watermark is color-enhanced! Having noted all this, I will also noted that PDFtk has a GUI version that purports to handle watermarks, in consideration of a $4 licensing fee. Not pricey at all! On the other hand, I find its website currently advertises full support for O/S's through Windows 8 and OS X 10.8 Mountain Lion. That vintage is over 4 years ago. Might PDFtk be getting outdated?
I suspect not, but I don't know. @Shiki - actually, I did some serious research into PDF formats, but scrapped my detailed assessment of PDF progress in the past 10y. Here's the summary: 'Shortfalls of a 3 y.o. PDFtk release in light of PDF spec development.' While there have been several updates since, say, 2005, _you'll be fine with _PDFtk_ in all likelihood._ I say this after checking some commonly available, modern PDF doc sources. All the PDF docs I checked were created to pre-2010 PDF standards ( well before, actually.) If you have any doubt, check the top few dozen bytes of the PDF file in question. – Nov 12 '16 at 20:49.
Here are to do it, I suggest you use Google Drive. Google Drive has the ability to open files and do some minor editing. Also, it can be used to remove watermark from PDF online. • Open your Google Drive account, which is basically the same as your Gmail account. • Click on “New” >“File upload”, select a PDF document and then upload it.