5 Free Online PDF Compressor Websites

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Here are 5 free online PDF compressor websites. Reducing the size of PDF files using these PDF compressor websites is pretty easy. All you have to do is upload PDF from PC and then you can get the output PDF with reduced size. These websites compress images stored in PDF pages and use other settings to compress PDF files. Even after compressing the PDF file, the output looks like an original PDF file. If you want to save disk space, then compressing PDF files is good, and these online PDF compressors will help you in that.

Apart from compressing PDF files, there are some other features that you will like. For example, you can compress PDF files in batch, set output quality (low, medium, high, etc.), convert PDF to greyscale, etc. Do note, PDF compression by these websites is quite good. Still, it depends on the total number of images present in PDF file and other factors.

So, let’s begin with the first free online PDF compressor covered in this list.

PDF Compressor

PDF Compressor

PDF Compressor (Homepage) is my first choice whenever I need to compress PDF online. The reason is simple. I like its straightforward interface and user interaction for compressing PDF files is negligible. You just have to add PDF files and then it automatically uploads and compresses them one by one. The best part is you can compress up to 20 PDF files at a time. The total file size limit or single PDF file size limit is not mentioned, so you need to check it yourself.

For each PDF file, it also shows how much size is reduced (in percentage). When PDF files are compressed, you can download them one by one or at once in a single zip file.

All your submitted and compressed PDF files are removed after an hour from its servers. So, you get enough time to store the output compressed PDF files to PC.

Online2PDF.com

Online2PDF

Online2PDF.com is a very powerful PDF compressor website. I am highly impressed with the features provided by this online PDF compressor. It lets you upload 20 PDF files at a time and file size limit for a single file is 100 MB and size limit for all files together is 150 MB. You can also set the quality of images (10%-100%), resolution of PDF images (25 dpi, 50 dpi, 150 dpi, 72 dpi, 300 dpi, 600 dpi, etc.), and set the color of output pages (black and white or colored).

Another unique feature is you can create a single PDF from input PDF files, create separate PDF files for input PDF files, and create separate PDF for each page of PDF files.

Apart from these features, it lets you set password protection to open, print, copy, and modify PDF, add header and footer to PDF, and set layout for the compressed PDF files. Your uploaded and converted PDF files are also removed automatically from servers. All such features make it a handy PDF compressor website.

iLovePDF

iLovePDF

iLovePDF is a good competitor to rest of the PDF compressor websites covered in this list. One unique feature is you can rotate PDF files and get the output compressed PDF files with rotation set by you. This website lets you compress one PDF and you can upload PDF file from PC, Dropbox, or your Google Drive accounts. If you use this website without registration, then you can compress 1 PDF file (with 160 MB size) at a time. If you register for a free account, then you can compress one PDF with maximum 200 MB size, which is a very good number.

When the PDF files are compressed, it automatically opens a window to save all the compressed PDF file on your PC. Apart from that, you can also save the output PDF files to Dropbox and Google Drive accounts. When you have saved the compressed PDF files, you can delete them immediately from the server. Otherwise, the file is automatically removed from its server after 1 hour (when using it without registration) and 2 hours (when using it with the free registered account).

PDF2GO Compress PDF

PDF2GO Compress PDF

PDF2Go website also provides a very useful online PDF compressor tool. It lets you compress one PDF at a time but the good thing is you can compress an online PDF, PDF stored on your PC, and Dropbox account. It doesn’t provide the file size limit but I was able to compress a 12 MB PDF file easily.

Another good feature of this website is you can set the output quality based on which PDF will be compressed. There are 6 different PDF quality options available:

  • Insane quality with 20 dots per inch (dpi) images.
  • Minimum quality with 40 dpi.
  • Screen quality with 72 dpi.
  • eBook quality (low) with 150 dpi.
  • Printer quality (high) with 300 dpi, and
  • High quality (color preserving) with 300 dpi.

You can also select output PDF as the greyscale option that further reduces the output PDF size. Select an output quality and then you can compress the PDF and get the output. Your output PDF can be saved to PC, Dropbox, and Google Drive accounts.

You can download output PDF 10 times or for 24 hours. After that, the website removes all the data from its servers.

Jinapdf.com

Jinapdf

If you are looking for a very simple online PDF compressor, then you should give a try to Jinapdf.com. Once you add the PDF file from PC, it automatically uploads and compresses that file to give the output. There are no compression settings like set the quality or convert pages to greyscale. Still, the compression level is quite good and you can get expected results.

I wasn’t able to find the file size limit to upload PDF for compression. Also, this website deletes your PDF files from the server but the time limit is not specified.

The Conclusion:

All these online PDF compressor websites are very good as the output generated by these websites come as expected. Still, my favorite on this list is “PDF Compressor” (placed at #1 position). I like its batch PDF compression feature and the feature to upload and compress input PDF files automatically. Try these PDF compressor websites and share your experience using the Comments section.

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