How winrar compresses. How to compress files for sending. Creating multiple volumes

Don't know how to compress a folder with files in ZIP? You've come to the right place! Read this article - and you will learn how to do it quickly, simply, and effectively.

-mail there is not always a chance that they will reach the recipient. Firstly, many email services have restrictions, and it is not always possible to send even files weighing 100 MB. Secondly, if the user’s traffic is charged (and this is not uncommon even these days - for example, on the mobile Internet), every megabyte counts. And when the data is well packaged, you can save a little on sending.

Let's figure out how to archive content into a folder with a ZIP extension. Why zip? Because this is the most popular type of archives. In addition, even standard Windows tools support it.

Archive in ZIP using OS WINDOWS

You can apply this compression on personal computers running different versions of Windows. The standard capabilities of the Microsoft OS involve the creation of zip archives.

• Select the file/folder that you want to archive and right-click. A system window will appear

• Do you see the Send item? Hover over and then click on “Compressed Zip Folder”:

• As soon as you click on it, compression will start:

• The zipped file/folder will appear next to the original in ZIP format:

• Do you think there will be more explanations on how to make a ZIP archive in the traditional way? Nothing of the kind - at this point the procedure can be considered complete. Does it allow for significant compression of information? Judge for yourself. The size of the original folder with files is 6.26 MB, after compression it is 5.15 MB.

Archiving in ZIP using the WinRAR program

If you compress bulk materials and want to do it as efficiently as possible, you should use the help of special utilities. For example, WinRAR - it is very popular in our country.

By the way, it not only quickly and efficiently compresses materials, but can also be used completely free of charge. So let's get started!

• After WinRAR has been installed on your computer, right-click on the selected files. You immediately see 4 new items with images of packed books. We are interested in the first item “Add to archive”:

In the window that appears, there is a wonderful opportunity to configure the following parameters:

• Format. Which format should you prefer? The choice is yours, but when you need ZIP, it is also in the list of extensions.
• Update method. For example, you can select "With replacement".
• Compression type. The higher the quality, the more time it will take to work. But the result will be maximum.
• Access to the file (setting a password, if necessary).

The WinRAR program also offers several additional parameters. For example, archiving in the background, turning off the PC after archiving is completed, creating a backup copy, adding a comment, and so on.

• And don't forget to click "OK" to start the process:

• It is quite expected that our compressed file will appear in the folder next to the original:

As you can see, there were no issues with archiving files here either.

Archiving using 7ZIP

And here is the third way to process files, which comes down to archiving materials using 7zip. Many users will agree with the statement that it is one of the most advanced archivers today. There is only one drawback - this program does not create RAR archives. But since you and I are interested in the ZIP format, the application is just right for us.

• Download 7ZIP from our website. After installing the software, 7-Zip will appear in the context menu. He will help us archive the necessary files.

• Select “Add to archive”. It will help us launch the settings window. As is the case with WinRAR, it is possible to specify the compression level, password, and make other settings. To start archiving, simply click “OK”.

We looked at 3 ways to archive files in ZIP format. Now you can not only do this without outside help, but also teach this simple craft to your friends. We wish you pleasant use!

Dozens of archivers are popular on the Internet today, and in the description of each program you can find that its algorithm is the very best... I decided to take several popular archivers on the Internet, namely: WinRar, WinUha, WinZip, KGB archiver, 7Z and test them in “combat” » conditions.

A little preface... The comparison may not be very objective. The comparison of the ahivators was carried out on the most common home computer, the average for today. In addition, different types of data were not taken: the compression comparison was carried out on a regular “Word” document, of which many who study or work with them can accumulate a huge amount. Well, it is logical that it is advisable to pack information that you rarely use into an archive and sometimes extract it. And it’s much easier to transfer such a file: it will be copied to a flash drive faster than a bunch of small files, and it will be downloaded faster over the Internet...

Compression comparison table

For a small experiment, a relatively large RTF file was taken - about 3.5 MB and compressed with different archivers. We are not taking into account the operating time yet, the features of the programs will be discussed further, but now we will just look at the compression level.

As can be seen from the small plate, the highest compression ratio is achieved with the KGB Archiver 2 program - the original file size has decreased by 23 times! Those. if you have several gigabytes of various documentation on your hard drive that you don’t use and want to delete (but you can’t shake the feeling that it might come in handy) - wouldn’t it be easier to compress it with such a program and write it to disk...

But about all the pitfalls in order...

KGB Archiver 2

In general, it’s not a bad archiver; according to the developers, their compression algorithm is one of the “strongest”. It's hard to disagree...

Only the compression speed leaves much to be desired. For example, the file in the example (about 3 MB) was compressed by the program for about 3 minutes! It is not difficult to estimate that she will compress one CD disc for half a day, if not more.

But this is not particularly surprising. Unpacking a file takes as long as compression! Those. If you spent half a day compressing some of your documents, then you will spend the same amount of time getting them out of the archive.

Result: the program can be used for small amounts of information, especially when the minimum size of the source file is important (for example, the file needs to be placed on a floppy disk or on a small flash drive). But again, it is impossible to guess the size of the compressed file in advance, and you may waste time on compression...

WinRar

The famous program in the post-Soviet space is installed on most computers. Probably, if she had not shown such good results, she would not have had so many fans. Below is a screenshot showing the compression settings, nothing special, except that the compression level was set to maximum.

Surprisingly, WinRar compressed the file in a few seconds, and the file size was reduced by 17 times. a very worthy result, considering that the time spent on processing is negligible. And the time to unpack the file is even less!

Result: An excellent program that shows some of the best results. During the compression settings, you can also specify the maximum archive size and the program will split it into several parts. This is very convenient for transferring a file from one computer to another on a flash drive or CD/DVD disk, when you cannot write the entire file to...

WinUha

A relatively young archivist. It cannot be called super-popular, but many users who often work with archives have an interest in it. And it’s no coincidence, because according to the developers of the archiver, its compression algorithm is stronger than that of RAR and 7Z.

In our small experiment, I would not say that this is so. It is possible that on some other data it will show much better results...

By the way, when installing, select English; in Russian, the program displays “cryakozabry”.

Result: a good program with an interesting compression algorithm. The time to process and create an archive is, of course, longer than WinRar, but for some types of data you can get a slightly higher compression ratio. Although, personally, I would not put much emphasis on this...

7Z

A very popular free archiver. Many argue that the compression ratio in 7z is even better than in WinRar. It is quite possible, but when compressed with the “Ultra” level on most files, it loses to WinRar.

Result: a good alternative to WinRar. Quite comparable compression ratio, good support for the Russian language, convenient integration into the Explorer context menu.

WinZip

Legendary, one of the most popular archivers ever. On the Internet, probably the most common archives are “ZIP”. And it’s no coincidence - despite the not-so-high compression ratio, the speed of operation is simply amazing. For example, Windows opens such archives as regular folders!

In addition, we should not forget that this archiver and compression format is much older than its newfangled competitors. And not everyone now has powerful computers that will allow them to quickly work with new formats. And the Zip format is supported by all modern archivers!

PDF files with lots of graphic elements look nice, but sending them by email is a complete pain due to the large size of such documents. There is no need to wait long for the file to be attached to the letter, because you can reduce its size with virtually no loss of quality. Fortunately, there are plenty of ways to do this - choose whichever you want.

It is worth noting, however, that half of the methods listed below are only possible using Acrobat DC from Adobe installed on your PC. This is a paid product, but the 30-day trial version is completely free. It is available on the official Adobe Systems website.

Using CutePDF or another PDF converter

You can reduce the size of a PDF file using one of the converters, for example, CutePDF. It allows you to convert files from any printable format to PDF, as well as change the document size, increasing or decreasing the quality of images and text. When you install this product, a virtual printer is created on the system, which, instead of printing documents, converts them to PDF format.

1. Download CutePDF from the official website (free) and install. Don’t forget to install the converter along with it, otherwise nothing will happen after clicking the “Print” button.

2. Open the file in a program that supports its format and has the ability to print documents. If it's a PDF file, you can open it in Adobe Reader; and if the file is in doc or docx format, Microsoft Word will do. Click on the “File” menu item and select “Print”.

3. When the printing settings window opens, select CutePDF Writer from the list of printers.

4. Click on the “Printer Properties” button, in the window that opens, click on the “Advanced” button and select the content display quality. To compress the file to the desired size, select a quality lower than the original quality.

5. Click the “Print” button and save the file to the desired location. Only PDF is available for saving, regardless of what format the document was originally in.

Using online tools

If you don’t want to download and install anything, then you can compress the PDF file online. Compressing and converting documents online is fast and convenient.

1. Find a suitable tool on the Internet, such as Smallpdf. Unlike other similar online tools, here the user is not limited in the size and number of documents he can upload.

2. After visiting the website, upload the required document. This can be done by clicking on the label and selecting the file using Explorer, or by dragging the file with the left mouse button and dropping it in the desired area. You can also add a document from Dropbox or Google Drive.

3. When the process is complete, click on the “You can save the file” button and select a location on your PC for it. To upload a compressed document to Google Drive or Dropbox, click the corresponding icon on the right side of the button.

In addition to Smallpdf, there are many other online compressors on the Internet: Compress PDF, Online2pdf, PDFzipper and others. Some allow you to upload files up to 50 MB in size, others - up to 100 MB, others have no restrictions at all, but they perform their work at approximately the same level.

In Adobe Acrobat

You can compress a PDF file in Adobe Acrobat DC, but not in the free Adobe Reader.

1. Having opened the document in Acrobat, click on the “File” menu item, then select “Save as another” and click on the line “Reduced PDF file”.

2. Click in the drop-down list on the version of the program with which your document should be compatible. By choosing the newest version, you can compress the file as much as possible, but there is a risk that it will become inaccessible in previous versions of Acrobat.

3. Click on the “Ok” button, wait for the compression process to complete and save the compressed document to the desired location.

Another PDF compression method in Adobe Acrobat DC

If you have Adobe Acrobat installed and need to compress a document located on your PC, it is much more advisable to use the previous method. The same method can be used when the desired file is uploaded, say, to Google Drive, and you need to download it, simultaneously reducing its size.

1. Log into Google Drive from your account, double-click the PDF file you want to compress, and click the printer icon to open the print screen.

2. In the window that opens, click on the drop-down list and select the Adobe PDF line.

3. By clicking on the “Properties” button, you will open another window where you need to select the “Paper and Print Quality” tab, and then click on the “Advanced” button at the bottom of the window.

4. In the drop-down list (see screenshot below), select the desired document quality, at the bottom of the window click on the “Ok” button, then in the next two windows also click on “Ok”.

5. Save the reduced file on your PC.

Using Adobe Acrobat and Microsoft Word

The essence of this method of compressing PDF documents is that you first convert the file from one format to another, and then convert it back.

1. Open a PDF document using Adobe Acrobat, go to the "File" menu and select "Save As".

2. Click on the “Select another folder” button, then select the file type “Word Document (*.docx)” and save location. Click on "Save".

3. Having opened the document in Microsoft Word, click on the “File” item and select the “Save as Adobe PDF” sub-item.

Using PDF Optimizer

This method of reducing the size of PDF files also requires the use of software from Adobe Systems.

1. Open the document you want to reduce using Adobe Acrobat. Next, go to the “File” menu, click on the “Save as Other” line and select “Optimized PDF File” to launch the PDF document optimizer.

2. In the “PDF Optimization” window that opens, click on the “Estimate space usage” button to understand which elements take up how much space in the file (in bytes and percentage).

3. Having assessed what can be reduced and what does not make sense to compress, close the window by clicking on the “Ok” button and set the necessary compression parameters. To do this, in the left part of the window, left-click on one or another item, and in the right part, change the parameters.

4. You can delete images, change them from color to black and white, compress them, change resolution, change built-in fonts, etc. Having “played enough” with the parameters, click on the “Ok” button and save the optimized file to the desired directory.

A way to compress PDF files on Mac OS X

PDF documents created by the Mac OS X operating system are noticeably larger in size than files with the same content created using Adobe Acrobat. If you are a Mac OS X user and want to reduce the size of the PDF file you create, do the following:

1. Open the TextEdit application, then click on “File” in the program menu, and then select “Print”.
2. In the lower left corner of the window that opens, you will see a button called PDF. Click on it, and then on the line “Compress PDF” in the drop-down list. The result is a more compact PDF file.

Archiving a file

To ensure that the document takes up less space on your computer, you can archive it using one of the archivers, for example, 7Zip or WinRAR. Both programs are quite popular, but the first is distributed free of charge, and you will have to pay to use the second beyond the limited trial period.

To compress a document using the 7Zip archiver, right-click on the file, then with the left mouse button, first click on the 7Zip line, and then on the inscription “Add to “file_name”. Then the archive will be created automatically.

If you want to set certain parameters before archiving, select the “Add to archive” line. Then a window like the one in the screenshot below will open.

By using an archiver, you can significantly reduce the size of a document, as well as create an archive consisting of several files, compressed and combined with each other. This will make it much easier to store and transmit them via email. Just before sending an archived PDF file, make sure that the recipient also has an archiver installed, otherwise he will not be able to open the archive.

Note: Adobe Acrobat and Adobe Reader are not the same thing. Reader is free, but its feature set for editing PDF files is extremely limited, so you can only reduce the size of documents in Acrobat. However, Adobe Acrobat is a paid program. And if you don’t have it and don’t want to buy it, use other options for compressing PDF documents that are not associated with it.

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Often in everyday life there is a need to compress files for the convenience of storing them, recording them on media and quickly sharing them via social networks, e-mail , file hosting services and other services on the global Internet. However, not all files are equally compressible. Text format files (txt, doc) are best compressed. Archive files (rar, zip, 7z, lha, tar, gz, jar, etc.), video (avi, mpeg, wmv, flv), music (mp3, wma, aac) and images (jpeg, jpg, gif , png) are slightly reduced in size because they are initially compressed files. This also includes Microsoft Office files with docx, xlsx extensions.

Specialized archiver programs, the most famous of which are WinRAR, 7zip and WinZip, compress (reduce the size) of files. We’ll talk about how to compress a file as much as possible in the WinRAR archiver.

To start packing files into an archive, your computer must have WinRAR archiver installed. To start the compression (archiving) operation, you need to select the files that you are going to compress. Then, by right-clicking on the selected area, call up the context menu, in which we select the line “Add to archive...”.

In the “Archive name and parameters” working window that appears, on the “General” tab, set the name of the future archive, and also select the format and compression method. For formats, we recommend choosing the publicly available ZIP format, since some operating systems have difficulty reading the RAR format. In the “Compression method” drop-down menu, select “Maximum” accordingly. Click OK.

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To set your own compression settings for the RAR format, go to the “Advanced” tab and click on the “Compression Settings” button in the “NTFS Settings” group. In the new dialog box, you can select specific parameters for text, audio and full-color graphics compression, select the main compression algorithm, etc.

For adding a new file to an existing archive with maximum compression, you need to open this archive and select the line “Add file to archive” in the “Commands” menu; Even easier, you can drag the desired file into the program window. This will automatically open a new Archive Name and Options dialog box. All you have to do is set the compression method to “Maximum” for the new file and click on the OK button.

I think reading the article did you good. Now questions about maximum compression in WinRar are a thing of the past, and if they arise or are forgotten, then our website will help in restoring computer knowledge!

class="eliadunit">

Often in everyday life there is a need to compress files for the convenience of storing them, recording them on media and quickly sharing them via social networks, e-mail , file hosting services and other services on the global Internet. However, not all files are equally compressible. Text format files (txt, doc) are best compressed. Archive files (rar, zip, 7z, lha, tar, gz, jar, etc.), video (avi, mpeg, wmv, flv), music (mp3, wma, aac) and images (jpeg, jpg, gif , png) are slightly reduced in size because they are initially compressed files. This also includes Microsoft Office files with docx, xlsx extensions.

Specialized archiver programs, the most famous of which are WinRAR, 7zip and WinZip, compress (reduce the size) of files. We’ll talk about how to compress a file as much as possible in the WinRAR archiver.

To start packing files into an archive, your computer must have WinRAR archiver installed. To start the compression (archiving) operation, you need to select the files that you are going to compress. Then, by right-clicking on the selected area, call up the context menu, in which we select the line “Add to archive...”.

In the “Archive name and parameters” working window that appears, on the “General” tab, set the name of the future archive, and also select the format and compression method. For formats, we recommend choosing the publicly available ZIP format, since some operating systems have difficulty reading the RAR format. In the “Compression method” drop-down menu, select “Maximum” accordingly. Click OK.

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To set your own compression settings for the RAR format, go to the “Advanced” tab and click on the “Compression Settings” button in the “NTFS Settings” group. In the new dialog box, you can select specific parameters for text, audio and full-color graphics compression, select the main compression algorithm, etc.

For adding a new file to an existing archive with maximum compression, you need to open this archive and select the line “Add file to archive” in the “Commands” menu; Even easier, you can drag the desired file into the program window. This will automatically open a new Archive Name and Options dialog box. All you have to do is set the compression method to “Maximum” for the new file and click on the OK button.

I think reading the article did you good. Now questions about maximum compression in WinRar are a thing of the past, and if they arise or are forgotten, then our website will help in restoring computer knowledge!