How to remove watermark from PDF file? Watermark in PDF document Removing watermarks from PDF.

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How to add a watermark to PDF documents?
Can I create watermarks in a PDF file?
Of course you can. To add a watermark to a PDF document, upload your document to PDFfiller, or choose the PDF you would like to edit in MyForms. Click "Watermark, ETC" on the right, and select "Watermark." You can create watermarks with options to customize text, size, orientation and opacity. You can also choose to only add watermarks to select pages if desired.
How can I apply custom watermark to PDF forms?
To add a watermark to a PDF document, upload your document to PDFfiller, or choose the PDF you would like to edit in MyForms. Click "Watermark, ETC" on the right, and select "Watermark." You can create watermarks with options to customize text, size, orientation and opacity. You can also choose to only add watermarks to select pages if desired.
How do I insert page numbers in a PDF form?
To insert page numbers into a PDF document, upload your form to PDFfiller, or choose the PDF you would like to edit in MyForms. Click "Watermark, ETC" on the right and choose "Page Numbering." Then, choose display format, size and position to add page numbers to your PDF document.
How do I add a date to a PDF documents?
To add a date to each page of your PDF document, upload your form to PDFfiller, or choose the PDF you would like to edit in MyForms. Click "Watermark, ETC" on the right and choose the "Date" option. Then, choose a display format, size and position to add a date to each page of your PDF document.
How to annotate PDFs?
To annotate PDF documents, upload your document to PDFfiller, or choose the document you want to annotate in "My Forms" page and click "Fill" button. Open "Draw" tab and access the editor toolbar, you can have a variety of annotation features: highlight text, add comments, underline text and insert sticky notes or arrows.
Can I Annotate a PDF file?
Yes, you can. Upload your PDF documents to PDFfiller, or choose the document you want to edit and click "Fill" button in PDFfiller"s "My Forms" page. You can access to a variety of annotation features using the editor toolbar in "Draw" tab. To mark parts of text in the document, click the first button and select the text you"d like to highlight. To add a comment, click the fourth button and place a text box anywhere in your document. To add a sticky note, click the last button of the toolbar and place a note anywhere in your PDF. You can change the notes" font setting using the buttons below the "Sticky Note" button. To underline text, click "Line" (the 6th) button and draw a line in your document. Place the line under the text you want to underline .

I mentioned my self-made a method for removing watermarks from PDF files downloaded from ProQuest.

« Please note that the pages of the downloaded pdf file "out.pdf" are marked with a "PREVIEW" watermark to protect something there. Perhaps this message only appears in the trial version of ProQuest access. Or maybe not. I won't lie - I don't know.

If someone “likes” to see this “watermark” in the file, then so be it. But some aesthetes, like me, find it terribly annoying. To meet the needs of workers all over the world, skilled programmers have created programs that allow you to remove watermarks from PDF files, for example, “PDF Logo Remover”, “PDF Watermark Remover”, “Nitro Pro”, “PDF Converter Ultimate”, “VeryPDF PDF” Text Replacer", "VeryPDF PDF to Any Converter", etc. And, as they say, even “Adobe Acrobat Pro” itself also allows you to do this. Having tried everything mentioned above, I say: “No way are they removing this PREVIEW label from the files produced by ProQuest!”.

IN in principle, the task destruction“watermark” on the pages of pdf files is not entirely relevant for graduate students. Because who needs to catch only essence from the multi-page creations of Adobe, and even more so when watermark does not interfere with the direct ripping out of the text “from there”, this problem “doesn’t matter.”

ABOUT However, life is much more complex and varied than the graduate student routine, so I personally have been faced with the task more than once clear some pdf file from unnecessary inscriptions, such as “PREVIEW”, “COPYRIGHT”, "DTIC", "IEEE Proof" and the like. By the way, not for the purpose steal or to appropriate someone else’s intellectual product, God forbid, but for completely different reasons.

T So, having once encountered such a problem, I really tried quite a lot of software products. In some cases worked one, in others - other, but much more often the “patented doctors” were powerless. And “what” to do?

A What, for example, do smart and handy men without money do in villages when they need to move around the local potholes? They, using improvised means, the remains of Soviet collective farm equipment, old tires, pieces of scrap metal in the yard, plus a neighbor’s welding machine, are simply making themselves some kind of self-propelled unit. Of course, he is painfully ugly to look at, but... put him in a swing, - LUCKY! Do you need checkers, or should you go?

P Since I have long been accustomed to doing many things on the command line in the form of scripts or batch files 1) This approach makes life much easier when automating various routine operations, which I have in abundance at work, or when processing large amounts of data. In this case, everything is under control. Moreover, after writing a couple of dozen lines and pressing a button, you can go in all four directions - even smoke, or take a nap!, then in this case “shellless” and unsightly « watermark-terminator» I “made” pdf files for personal needs from what I had. Well, okay! Writing a full-fledged graphical shell, and even with the newfangled, tombstone-style Windows interface, was a “breakdown.” You don’t specifically change clothes for dinner, do you? And you can eat at the table in your underwear.

Algorithm of actions

IN In most cases, the watermark in PDF files is some kind of inscription or text picture in the background behind main text. Moreover, for its image in pdf documents with scientific and technical As a rule, the content uses a certain shade of gray - not fifty, as is now fashionable, but one. A paranoid case of a watermark with multi-color fill, gradient, shadows and other design features bells and whistles we will not consider. U "Vchenykh" This one is a little simpler. So in a nutshell algorithm self-made “termination” of unwanted markings is as follows:

AND So, let's look at the algorithm described above in more detail.

P Let's assume that we have a certain pdf file with some stupid gray inscription in the background. Moreover, let’s complicate the introductory: let the file also protected from changes.

IN from you a living example of such a file - this is my article in the magazine « Geoscience and Remote Sensing» which was sent to me from there in 2004 for final edits. By opening this file in “Adobe Acrobat pro” and pressing “Ctrl-D”, you can make sure in the “Document Properties” in the “Protection” section that this pdf file is prohibited change, layout, copying And page extraction.

1. We remove restrictions

T Therefore, the first step is to remove the protection or restrictions that have been installed. One of the methods of this unfriendly action was described by me back in "Trick No. 6 - Opening a password-protected pdf file". There they used, frankly, a good program from “Wondershare” - “PDF Splitter 1.5”, taken, as always, from the bourgeoisie for temporary use.

N oh, unfortunately, “PDF Splitter 1.5” does not allow you to work from the command line 2) Actually, in order to use programs in scripts without command line support, I developed a certain technique - it may not be very elegant, but it works. Someday I’ll describe it in the next “Trick”.. Therefore, I had to look for an alternative, which was found in the form of a free utility “ qpdf » 3) Link to " ", link to where you can download this utility., allowing in one line

qpdf -decrypt input.pdf output.pdf

remove restrictions from pdf file 4) The following files are used during operation: “qpdf.exe”, “libgcc_s_dw2-1.dll”, “libstdc++-6.dll”, “qpdf13.dll”. Original link, .. Simple and tasteful.

ABOUT Of course, you shouldn’t have any illusions about “qpdf”. What Maybe, she does, and what she can’t do, then “ Well, I couldn't».

2. We break into pieces

P moved on. For splitting (“split”) and merging (“merge”) PDF files, there is a hell of a lot of programs: of different sizes and with different capabilities 5) For example, "A-PDF Merger 2.4", "Free PDF Merger (Splitter)", "PDF Content Split" , "PDF Splitter and Merger" , "PDF Stitcher 2.0" , "Wondershare PDF merger-splitter", "TPDF", etc. and so on.. But it has always been more familiar and convenient for me to whip up a body file, write a couple of lines there, and not worry about it.

N For example, the file “input.pdf” with lifted restrictions you can instantly “break up” into separate pages using utilities "pdftk", "tpdf", or " " by running on the command line just

pdftk input.pdf burst

tpdf -t split -in input.pdf -out out_.pdf -ns —

cpdf -split input.pdf -o pg_%%%%%%%.pdf 6) This line needs to be written into the bat file, and the batch file should be launched.

P After the first and third commands, a bunch of files like “pg_0001.pdf”, “pg_0002.pdf”, ... will appear in the current folder, and after the second - “out_001.pdf”, “out_002.pdf”, ...

3. Convert pdf to tif

D For this operation, they also came up with a lot more special beautiful programs and online services. But for similar purposes I use a set of software "Ghostscript"(see brief information). Today there is version 9.18, which can be downloaded from here and installed “for no money” - if desired, of course. Portable version of Ghostscript for old and new Windows (necessary for this case) can be downloaded from here.

IN from is an example of a one-line command in a bat file that converts the file “input.pdf” to “output.tif”.

gswin32.exe -dNOPAUSE -dQUIET -dNOPROMPT -sDEVICE=tiffgray -sCompression=lzw -r300x300 -dNOPAUSE -sOutputFile=output.tif input.pdf -c quit

4. Extract the watermark

E This is the only moment of human intervention in the automatic process of the magical disappearance of the watermark. At first I wanted to use Paint Shop Pro 6.02, which I use continuously, despite the 15-year age of this program. « Old people - old things » . Because the this version— light as a bird, fast and intuitive. Unlike her current descendant - latest version X8 is a bloated monster with a distribution of about 250 MB with awesome capabilities that are 99% unnecessary for my routine work. Although the trend is obvious. Instead of “Windows 3.11 for Workgroups” on three floppy disks and 640 kilobytes of memory, now any piece of hardware, even the smallest one, operates with gigabytes and tens of gigabytes.

N oh, then I remembered another wonderful program - "IrfanView", which is included in my circle of “chosen” and “irreplaceable” (I currently have version 4.37). Its use together with the “clipin” and “cmp” utilities (from the wonderful 135-utility set "Poof! ») made it possible to automate as much as possible the stage of selecting a fragment with a watermark.

R An intelligent being, for example, a graduate student, just needs to select a “piece” of the actual watermark with the mouse in the file that opens in IrfanView, press the world-famous combination “Ctrl-C” and close IrfanView.

N and this one is yours doable the mission ends, after which you can “recover and smoke.”

5. Determine the color code of the watermark

D This operation is performed using the utility "identify" from the chic software package for working with images “ImageMagick” 7) Link to the home page, where to download the current version 6.9.2-4 and the portable options I'm using.. ImageMagick is so powerful that it can All. For this you need one single little thing - with it you need figure it out. But just like MiKTeX 8) A bunch of my links: , link 2, link 3, link 4, link 5, link 6, link 7. according to Michal Mikhalych 9) MM. Zhvanetsky: “ Well, Switzerland is a very small country. Krasnoyarsk region covers her like a bull covers a sheep" (link)“covers” Word and a sea of other publishing software, both “bull and sheep,” and ImageMagick opens up a boundless sea of possibilities for those who want to make “candy” out of images.

ABOUT the only command of the kind

identify -verbose input.tif >info.txt

The “identify” utility “splits” the input file “input.tif” in a way that a team of investigators cannot do after a 10-hour interrogation. And from its “testimony” (file “info.txt”) you can extract everything you need, including our modest needs for the color code of the watermark.

6. “Execution” of the watermark

N and at the final stage, for which all this fuss was started, another ImageMagick utility with a modest name comes into play "convert". Having determined at the previous stage the color code of the watermark that bothers us, for example, in the form #D9D9D9, with a short command

convert input.tif -fill white -opaque #D9D9D9 output.tif

we completely replace this color in the source file "input.tif" to the page background color ("white"), writing the result to "output.tif". Now all that remains is to turn the tif back into pdf, and this can be done.

7. Return to “origins”

P Since everything has already been invented before us, smart heads on the planet have “planned” quite a few programs and utilities for converting images into pdf format. Personally, I’ve definitely tried a dozen different “handicrafts” plus online services. But for this task I used the “Tiff2Pdf” utility and the “BitMiracle.LibTiff.NET.dll” library from the package "LibTiff.Net" by downloading the archive from the link. With its use " trousers turn into elegant shorts with a slight movement of the hand»:

Tiff2Pdf -z -o output.pdf input.tif

8. PDF of all countries, unite!

P Programs for “gluing” PDF files were also created according to “I don’t want it.” But I was always interested in knowing why a bunch of programs are needed if the already mentioned wonderful tools exist "pdftk". So, to combine a whole bunch of pdf files in the “pdfs” folder into one common file “pdf_out.pdf”, you just need to type on the command line

pdftk pdfs\*.pdf cat output pdf_out.pdf

Afterword

E If anyone did not fall asleep when he got to these lines, then I hope he was able to get general an idea of the algorithm for removing watermarks from a pdf file.

TO By the way, some comrades still, when receiving a government award, end their speech with the words: “ But this is not only my merit, but the merit of our entire team!" Having described almost everything I can’t help but mention the utilities that were used to solve this problem that, without which I could not do anything: streaming text editor sed 10) , where version 4.1.5 is stored, which I use. for the distribution of the current version 4.2.1.. A small and modest home front worker, forging victory over the text hordes - this is how I would define this utility, indispensable in my work. Glory to sed, the inspirer and organizer of our achievements!

Codes for the curious

I I understand that the passion for picking at the insides of toys, like my grandchildren, passes over the years. However, for those graduate students of technical specialties (I’ll keep silent about doctors) who managed to preserve this childlike spontaneity, I suggest you take a look at the insides of this gray"watermark terminator". Here - to the page with the codes of all bat files. When writing them, I tried to comment as much as possible (@rem) on my actions for young graduate students. But, most likely, something is definitely missing. " Well, call me, Mykola! There is no bananiv in Maine for you».

Instructions

N uh!?! Yes, yes some The long preamble is over! " Gop-stop, we came around the corner».

T so, if you ask to download this homemade, then I have it. — archive file “portable_wm-remove.zip” (for a moment, 24,894,285 bytes). Anyone who doesn’t trust me, but for some reason trusts Yandex.disk, can download all this "studio", having in hand a guarantee that there are no viruses. By the way, this watermark "terminator" is tested for strangers on machines with Windows XP, 7th and 8th versions: everything works.

In the footsteps

Download the archive and expand it to some folder on your computer.
Place a pdf file in this folder from which you want to try to remove the disgrace in the form gray watermark.
Rename this file as “pdf_in.pdf”.
Click on the batch file “_clean.bat”, clearing the folders of possibly remaining previous results.
Click on the batch file “1_remove-wm.bat”, starting the process of “destructing” the watermark.
Don't be alarmed by the flashing Ghostscript windows: then pdf files are converted into tif images.
Visually select a fragment from the image that opens in IrfanView only watermark without “catching” the text. By pressing the left mouse button using a cross-shaped cursor, select the desired small area of the image. Then the button can be released, allowing the mouse to take a breath of air.
Press the magic keys “Ctrl-C” and close IrfanView.
Everything else will be completed on its own. After some time, a file without a watermark will appear in this folder - “pdf_out.pdf”.

H to confirm that all this works, I suggest you look at four examples of different pdf files “BEFORE” the conversion and “AFTER”. In the last example, the source file had protection in the form of restrictions on file modification.

If ($answer_counter == 1): ?> endif; ?>

For image-based watermarks, there are several tools that promise to remove them automatically. For example:

All of this can be tried, but a license is required to obtain the required result.

However, the watermark of this particular PDF file (which emailed me e-mail) is not one image that is repeated on all pages. As it turns out, PDFCreator hard-coded it (almost pixel by pixel) into each of them. This makes the watermark much harder to remove (and results in a rather bloated PDF).

Since the watermark is actually made up of many small images, you can remove them using a PDF editor (such as Foxit Advanced PDF Editor) by simply selecting them and clicking Remove. Unfortunately, you have to repeat this for every page.

A less time-consuming solution would be to remove the watermarks programmatically. We need:

Pdftk: A tool for (un)compressing and patching PDF streams.
Notepad++: A text editor capable of replacing Perl's supported regular expressions.

Actions

Download PDFtk and extract pdftk.exe And libiconv2.dll V %windir%\System32, directory en route, or any other location of your choice.

Download and install Notepad++.

PDF streams are typically compressed using the DEFLATE algorithm. This saves space but makes the PDF source illegible.

Pdftk original.pdf output uncompressed.pdf uncompress

unpacks all streams so they can be modified using a text editor.

Open uncompressed.pdf using Notepad++ to show the watermark structure.

In this particular case, each page starts with a block

Q 9 0 0 9 2997 4118.67 cm BI /CS/RGB /W 1 /H 1 /BPC 8 ID Ÿ®¼ EI Q

and almost 4000 blocks like this one. This particular block sets only one (/W 1 /H 1) watermark pixels.

Scrolling down to the template change shows that the watermark stream is 95,906 bytes (counting newlines). The exact flow is repeated on every page of the PDF.

Press Ctrl + H and set the following:

Find: q 9 0 0 9 2997 4118\.67 cm.(95881) Replace: (blank) Match case: checked Wrap around: checked Regular expression: selected . matches newline: checked

The regular expression q 9 0 0 9 2997 4118\.67 cm.(95881) matches the first line of the above block (q 9 0 0 9 2997 4118.67 cm) and all subsequent 95,881 characters, that is, the watermark stream.

Clicking Replace all, remove it from all pages of the PDF file.

Now the watermark is removed, but the PDF file has errors (the lengths of the streams are incorrect) and it is uncompressed.

Pdftk uncompressed.pdf output nowatermark.pdf compress

takes care of everyone.

uncompressed.pdf no longer required. You can delete it.

The result is the same PDF file without the watermark (and about half the size).