In this lesson, we will learn to compress PDF file different ways and S. different quality (respectively different file size PDF)

Our task: Reduce the size of existing PDF file.and to send it by mail or if we need just a smaller document size.

What we have available: Actually PDF files or file, which / e must be reduced in size.

What we get at the end:

In our case, I propose to use online PDF files (i.e., all PDF files will occur on the websites of the services we need).

From the great abundance of services and sites, I would recommend 2 of them, with which we reduce our PDF files to a minimum size with a maximum compression or to the "decent" compression, but with the maintenance of normal quality photos in the PDF document.

So I present 2 service with PDF files: and. In principle, one would have enough service (smallpdf.com), but in the pdf-docs.ru service there is something that I will tell a little later in this lesson;)

Smallpdf.com.

Let's start with the SmallPDF.COM service. Turning on the link above we will see about such a picture:

This service has intuitive understandable interface In my opinion, it will not be easy to understand, get lost in the functions either will not work. Therefore, in our case, this is an excellent solution for our mini-problem.

Suppose we have a folder "Squeeze PDF" and it contains all files or one PDF file to be reduced in size (I have 1 PDF file in the folder):

In order to squeeze the necessary PDF file, click the "Select File" button:

After selecting the PDF file you need, the file selection window closes and the service will start manipulation with the PDF file. Next What we will see is the process of preparing and compressing the PDF file:

After passing the stage in "Loading 100%", the page will be updated and we will see the block with the result of compression of our PDF file "Big_file.pdf":

From this data, we learn that our initial "big_file.pdf" file is compressed by 71% (good result) and that now he will "weigh" 2.84 MB, and was initially 10.14 MB. Below we offer a link to download the already modified file:

Click "Download PDF" and download compressed PDF file:

At the end in our folder, "squeeze PDF" are 2 files - not a compressed "big_file.pdf" file and a compressed PDF file "small_file.pdf":

With this SMALLPDF.com PDF compression service, the lesson is completed, go to the next service with its distinguishing features "PDF-docs.ru".

PDF-docs.ru.

So goes on. At the time of writing this lesson " Compression PDF. Files » main page This service looked something like this:

Why this resource is chosen by me to solve our problem: in this service We can achieve larger PDF File Compression Coefficient Compared to smallpdf.com, but also the quality of the photo and pictures in the final PDF file (compressed) will be more noticeable worse, respectively.

Let's start using the service. What we have at the initial stage: 1 PDF file in "cheese", uncompressed form:

To begin with, we need to specify the service PDF file that we want to compress. Click on the "Select File" button:

As a result, a new window will open in which we specify the path to the PDF file. In our case, this is the folder "Squeeze PDF" and the file located in it "Big_file.pdf". Next, we need to set the degree of squeezing the PDF file, for this in the service "PDF-docs.ru" there is a special field:

Click on this field (I highlighted it in the figure above), we are invited to choose from three options the degree of compression PDF file:

In our case (for maximum compression PDF), use the "Best Compression" item. Now all parameters for compression are configured, press the button "Forward!" And the service will start downloading our source file and its compression:

After clicking on the service button, the message will start and us will appear at the time of execution of the work:

After a while, after the service "PDF-docs.ru" performs all the necessary work on the compression of the PDF file, we inform us about the successful completion of compression:

Based on the data submitted, we see that our compressed PDF file now "weighs" only 1.7 MB. This is in my opinion a very good result in the ratio of drawings in the PDF file.

Now we need to download our compressed PDF file. To do this, click on the link below in the "Download File:" field. In our case, the link to the file will be referred to as "NEW-314_BIG_FILE.PDF", click on this link to download the file:

After clicking on this link, the process of downloading PDF file will begin. In some cases, depending on the browser and settings used, after clicking on the download link, it can begin opening it in the browser. If the file opens in the browser, just save it to your computer.

As a result of our manipulations for compressing the PDF file, we have 2 PDF files in the folder "compress PDF":

As we see the source file weighs only 1.7 MB, which is very convenient for sending by e-mail Or download to the server.

If you need to send a document, PDF. - Perfect format compatible with several operating systems (including Windows, Mac and Linux). PDF files are not only universal, but also well protected, allowing users to assign passwords for especially important documents.

However, one of the remarkable deficiencies for PDF files is their size. PDF files can often be cumbersome, which makes it difficult to ship by email. Fortunately, there are a number of tools that can be used to reduce the size of such files.

Reduce the size of the PDF file

One of the simple and effective ways is the use of Adobe Acrobat Reader. Open the program, then open pDF fileyou want to do less. Choose Document > Reduce file size.

Software for compression PDF files

It is also worth paying attention to such popular programs to compress files like WinZip, WinRAR or 7Zip. In most cases, they can help you create easier PDF files.

Reduce PDF file size on Mac

Users MAC. PDF files can be compressed using functions available in the application. View (PREVIEW.).

Open File PDF. via PREVIEW. and go to the menu File > Export.

Select Filter Quartz.and then select Reduce file size (Reduce File Size). Click Save (Save.) to complete the file compression.

Squeeze the PDF file online

On the Internet you can also find many free tools that can squeeze your PDF files.

Smallpdf.

SmallPDF, Free PDF Editing Site, will help you easily and simply reduce the size of the necessary PDF files online. The site includes an automatic compression function, which makes the process very fast. Then you can download yourself a new compressed file.

The process of compression of files itself consists of two stages. Go to SmallPDF and drag your file in the field with the mouse or click Choose File. (Select a file) to find and upload a PDF file from your comroy:

Wait until the automatic compression process begins, then download yourself a ready-made file.

PDF Creator

PDF Creator is a program with several interesting featureswhich can help you easily create PDF files. During installation PDF Creator Creates virtual printerwhich allows you to save documents (Word, Excel, etc.) in format PDF..

After installing the installation PDF Creator, open the file using Acrobat Reader.. Click Print and select virtual printer PDF Creator (PDF Creator Virtual Printer).

Then open Properties > Paper / Quality and press Additionally.

Choose Print quality and reduce DPI (permission) file. After starting the task to print, a new more easy version PDF file..

Image: © Oleksandr Yuhlchek - Shutterstock.com

Surely for you is not news that PDF format is widely used in all areas of activity due to its "weight" and your image quality. Why did I focus on the "weight"? Because usually this file Weighs a lot because of the many non-ferrous, bulky and bright graphs and so on. Therefore, today we will look at the question: "How to reduce the size of the PDF file", since most questions arise that therefore occasion. Some generally prefer the use of other programs due to this problem. Compression pDF files - a process that requires the use of special software. To reduce the file size, you can use the following programs: Adobe Acrobat.using the use of standard compression in Windows. Adobe Acrobat can download from the developer's site.

How to squeeze a PDF file?

Method using Adobe Acrobat

In order to reduce the PDF file, open Adobe Acrobat, then press the "File" tab - "Open" in the Main Menu - these actions give us the opportunity to open the file you need to compress. Then repeat the action "File" - "Open" - "Save as another" - " Reduced PDF file". In the window that appears, select the versions compatibility setting and click "OK", in order to apply the tinctures to multiple files, click "Apply for All" to save you need to click "Save As".

Method for reducing the file size in Adobe Acrobat, by means of PDF optimizer

As you notice, Adobe Acrobat makes it possible for us to reduce the file size. First you need to select documents that need to be reduced in size. To do this, we need to click in the Main Menu to the "File" tab - "Open". Then repeat the same actions, then click on "Save as another" - " Optimized PDF file". Then you need to adjust the settings and save the file by clicking on the "Save As" button.

Method for reducing the weight PDF file according to Windows OS standards

In order to achieve best quality And the least weight, OS Windows developers strongly recommend using a standard file reduction to work on it. This can be done by right-clicking on the file you created - "Properties" - "General" - "Others" - Next, you need to put a check mark on the inscription "compress ...". This procedure It takes no more than one minute and is one of the most efficient.

If you often met with PDF files, you know that sometimes they can be sufficiently sweaty due to images or other graphics. Fortunately, there are many ways to compress any type of files, including PDF documents.

In this article, I will tell you a couple of ways to reduce the size of PDF files. If you have Adobe Acrobat (not free), then make it much easier, but we will use only free methods.

Method 1 - SmallPDF.com

This is the easiest way to reduce your PDF file. Using this free service You can also convert PDF to: Word, PTT, JPG. In general, the functionality is very extensive, but we will return to our goal.

So, go to the site smallpdf.com. Next, select the language at the bottom of the screen.

Next, click on " Compression PDF.».

Now you need to either drag your document to the relevant area, or select it in the standard way.

Then we wait a few seconds until the file is loaded to the server and compress. At the end, you will receive the following message (see Screenshot below).

To download the already reduced PDF file, click " You can save the file." By the way, the service works with clouds google warehouses And Dropbox, which is very convenient. From clouds you can upload files, as well as move already compressed documents in them.

As you can see in the screenshot below using this online service, you managed to reduce the file size from 5.46 MB to 3.1 MB. Quite good compression, besides this is free

Among other online services, I would also recommend using pdfcompressor.com/ru/ or convertio.co/ru/compress-pdf/. I especially liked the last service, if it choose a high degree of compression, then the size of the document will decrease by 15-20%, although special losses are not felt.

Method 2 - PDF Compressor Program

Wonderful free program To compress documents in PDF format. You can download it on the official PDFCompressor.org website. Install and start working with the program. First you need to download the file to do this, click on the " Add file."Or simply drag PDF to the central area of \u200b\u200bthe window.

After that we click on the button " Start Compression" After 10-15 seconds, we get the result.

The result did not comfort me, since my document squeezed only 1 KB. But if you work with more than 20 MB files, then the PDF decrease occurs by 30-40%.

Compression with the help of the PDF Compressor program is good because the document does not lose quality. It is also useful that in this program you can work with PDF documents in batch mode, squeezing at the same time by 100 or more files.

Method 3 - FREE PDF Compressor Program

Free and easy-to-use program. You can download it on the site freepdfcompressor.com. After installation, go directly to compression.

We download the document by pressing the button " Browse.»In the first line. In the second line, specify the path where the compressed PDF file will be saved.

Next, select the compression format. Of the five presented I recommend installing Printer ..." In this mode, compression occurs with minimal loss of quality (purely observation).

Now it remains easy to click on the button " COMPRESS."And wait for the end of processing the program of each village of your document.

Good day!

PDF files like everyone is good, but they have one cornerstone ... The fact is that the size of some PDF Fock is far from "ideal", often when they weigh even 100 ÷ 500 MB, sometimes it comes to 1 GB! Moreover, not always such a file size is justified: i.e. It does not have any very high-precision graphics that takes so much space.

Of course, when you deal with this size - there are difficulties with its transfer to other PCs, tablets, phones (For example, on the phone simply may not be enough memory for a dozen similar files!) .

In such cases, you can "somewhat" reduce the size of PDF using its compression. Conduct compression, by the way, you can different ways. Actually, this is today and today's article ...

By the way! If you delete some pages from the PDF document, you can reduce its size due to this. If this option suits you, I recommend this note:

Method No. 1: Archiving

Perhaps the most simple and obvious is to add PDF files to the archive. Thus, sometimes, it is possible to significantly reduce the size occupied by them. In addition, one archive file is much faster and more convenient to copy from one PC to another (rather than a dozen, or even a hundred PDF-Fock) .

Addition! The best free archivers for Windows -

To send the file to the archive - just 1-2 clicks with the mouse. For example, in such a popular archiver like 7-zip (It will also be found on the link above) : just right-click on the file and select the Select menu "Add to archive ..." . See Screen below.

Actually, my file was compressed almost 3 times! Example below.

The advantages of the method:

• after unpacking the archive, the PDF file does not lose its quality;
• zip archives formats can open most modern;
• one file archive (within which a hundred PDF) is much faster than to do it with these same files without adding them to the archive.

Disadvantages of the method:

• to open the file, you need to extract it from the archive (and not on all PCs / phones / tablets the desired archiver can be installed);
• not all files are equally well compressed: one can be compressed very well, the other is 0.5% ...
• when selecting some formats of archives - may require considerable time to store files.

Method number 2: Compression by quality reduction (DPI)

DPI - This is the number of points per inch. The more points on the inches - the higher the quality of the displayed picture (and the more the file weighs). Naturally, when re-saved a PDF file, you can specify a new number of inch points (DPI) and due to this to reduce the file size (along with its quality).

However, I immediately note that not always with a decrease in DPI - the quality of the picture deteriorates (in many cases, do not notice the difference!).

Make a similar procedure in a variety of programs : Adobe Acrobat. (do not confuse with Adobe Reader.) , Fine Reader., Cute PDF Writer, Libre Office and others. Below I will give a couple of free examples ...

1) Libre Office. ()

A good and free office set (I have previously recommended it as an alternative to MS Office). In his arsenal, has a DRAW program that can easily and easily make changes to PDF (including change DPI). Consider in more detail ...

To start Draw - run Libre Office, and select Draw in the menu.

A window will open with a multitude of parameters for saving. Here you can change the quality of compression, resolution (DPI) and other parameters. In general, I allocated the most necessary on the screen below.

After setting the parameters, press the export button to create a new file.

Quickly, simple and easy! Is not it?

2) Cutepdf Writer. ()

This free program after installation "creates" a separate special line when printing a document (with the desired properties for compression) ...

Those. Install it, then open some PDF file, say, in Adobe Reader (can and in any other program for reading PDF.) And click "Print" (CTRL + P combination).

Then choose instead of a real printer line " Cutepdf Writer. ", and open it" Properties ".

Properties Cutepdf Writer.

After you need to open the print quality tab and go to "Advanced".

Here you can set the print quality in DPI (and other parameters).

NOTE.

By the way, you need to install both files that are available on the official website of the program!

Pluses of the method:

• do not lose compatibility (the file remains the same PDF);
• the operation passes quite quickly;
• operation "By DPI Change" can be carried out dozens of different programs.

Cons:

• in some cases, quality drops strongly (for example, if you deal with schemes and high-quality portfolio - most likely, this option Not suitable).

Method number 3: Conversion to DJVU format

DJVU format, on average, provides stronger compression than PDF. And you must admit that DJVU is one of the few formats that really compete with him.

To convert from PDF to DJVU, in my opinion, it is most preferable to use one small utility - Pdftodjvugui. .

Pdftodjvugui.

Of. website: http://www.trustfm.net/software/utilities/pdftodjvugui.php.

Note: Please note that the utility sometimes incorrectly reads "names" files written in Russian.

PDF to djvu - small utility

To use her very simple: enough add the desired file. (Add PDF), set settings (you can not touch anything) and click the button "Generate DJVU" . A black window should appear for a while, after it, the program will report that the file is re-converted.

By the way, file djvu. The program will be placed in the same folder where the original PDF was located. For example, see Screen below. Without quality change (and the program allows you to change DPI), it was possible to reduce the location of the file almost 2 times!

PS.

Below will give some more online services that can do a similar conversion operation.

The advantages of the method:

• maximum file compression (i.e. saving space on disk!);
• the file can be immediately opened in the reader, as well as you do it with PDF (i.e., this is not an archive).

Disadvantages of the method:

• for large falams, considerable conversion time is required;
• when converting may be "lost" quality (therefore, important graphs check manually, as they compressed);
• dJVU format supports smaller number of programs than PDF.

Method number 4: Using online tools

Excellent site for quick compression and conversion from one format to another. Files, up to 20-30 MB, are processed literally within 10-15 seconds.! The service does not touch the markup of the document, links, menus, etc. Elements. Compression occurs due to graphics (I mean PDI parameter).

Another universal service For quick converting PDF in DJVU, either for compression PDF without changing the format. The result can not only download to your PC, but immediately send to the cloud disc: Google Drive, Dropbox ...

There are 3 compression degrees on the service: minimum, normal and extreme. Works very quickly, files up to 3-040 MB processes in 5-10 seconds. (at least it was with my dozen test files) .

Files were compressed // Service "I Love DPF"

I also note that on this service you can break the PDF file into several parts, convert it to other formats, combine several PDFs, etc. In general, quite a multifunctional service, I recommend to get acquainted!

Advantages:

• unnecessary to install any programs to your computer;
• services can be used even from mobile devices;
• as a rule, the compression of small files on the services is faster.

Disadvantages:

• privacy (I think not everyone will decide to send some documents to an unfamiliar service);
• the need to upload / download files to the service (if the Internet is not very fast and a lot of files are to turn into a "head" pain).

Supplements on the topic are welcome ...