7 Best PDF Compressor / Reducer Software Offline & Online

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A PDF compressor software is a specialized program that helps you to reduce the overall file size of a PDF so that it takes up less storage space. You may compress PDF files to turn down the size to meet the size limit for attachments imposed by mail clients, messaging apps, online channels that require you to upload documents, among others. Also, by performing PDF compression, you get to store or archive PDF files way better by saving storage space.

Naturally, PDFs are optimized for compression and there are two ways you can implement to reduce PDF file size; Lossless (mainly used on text PDF files), and Lossy (mainly used on PDFs with graphics and images). Of course, you need the best PDF compressor to keep a good balance between the output quality and size, and this article presents you with just the right programs for the job.

7 Great PDF Compressor Software To Reduce PDF File Size

Software NameSupported OSVersionDownload Link
  • 1. TalkHelper PDF Converter
  • WindowsFull VersionFree Download
  • 2. Neuxpower PDF Compressor
  • Windows, Mac, Web-basedFree TrialFree Download
  • 3. PDFZilla PDF Compressor
  • WindowsFree DemoFree Download
  • 4. Adobe Acrobat
  • Windows, Mac, Web-basedFree TrialFree Download
  • 5. iLovePDF
  • Windows, Mac, Web-basedFree TrialFree Download
  • 6. PDF Compressor
  • Web-basedFree VersionFree Download
  • 7. Smallpdf
  • Windows, Mac, Web-basedFree TrialFree Download

    #1. TalkHelper PDF Converter (Recommended)

    talkhelper-pdf-converter

    TalkHelper PDF Converter is a leading PDF converter program that also doubles as an avid and the best PDF compressor software. On a pretty straightforward user interface, you can compress an entire PDF file or just a bunch of PDF pages or page ranges, depending on the content you need. Through partial PDF compression, you get to save both time and effort that would have been consumed processing PDF files in their entirety.

    Even better, you are opened up to batch-compress PDF files which come in handy when you have a ton of documents to reduce. The best thing is that TalkHelper PDF Converter strikes the best balance between size and quality to deliver exemplary results.

    Pros:

    • Offers a proper balance between size and quality
    • Supports fast and batch PDF compression
    • Allows you to compress specific pages or page ranges
    • Very easy to use
    • Available on all versions of Windows

    Cons:

    • Windows Only

    Price: A single-user license starts at $29.95

    Supported Platforms: Windows Vista/7/8/8.1/10/11

    Best for: Fast, offline, and high-quality PDF compression on all versions of Windows.

    Download TalkHelper PDF Converter

    #2. Neuxpower PDF Compressor

    NXPowerlite

    With trust from over 2 million users, Neuxpower PDF Compressor promises to reduce PDF file size, up to 95%, in just a matter of seconds, signifying just how efficient it is. By using the Adobe PDF Library, this software can tap into the strong foundation of PDF compression that yields exceptional output.

    Amazingly, this free download tool can directly and automatically compress PDF files so that they can fit for use as email attachments. Even when there are images in the PDF, Neuxpower will compress the images while still keeping good overall quality.

    Unlike other PDF compressor software, you are open to reducing PDF file size before 300kb which is the limit for most tools. For further compression, you can zip the output PDFs.

    Pros:

    • Can compress PDFs below 300kb
    • Achieves up to 95% PDF compression
    • Available for online and offline use
    • Supports PDF image compression
    • Allows you to control the level of compression

    Cons:

    • Only supports 64-bit desktop architecture

    Price: Neuxpower PDF Compressor is available at a one-time purchase price of $48.

    Supported Platforms: Windows, Mac, Web-based

    Best for: Reliable online and offline PDF compression with up to 95% reduction in the file original PDF size without drastically affecting the quality.

    Download Neuxpower PDF Compressor

    #3. PDFZilla PDF Compressor Pro

    PDFZilla PDF Compressor Pro

    PDFZilla PDF Compressor Pro compresses both native and scanned PDF files with up to 23% compression ratio, fast and easy, on Windows. To give you greater control over the PDF compression process, you are allowed to tinker with the compressing value (compress quality and DPI) for balanced file size and quality.

    Also, worry not when you have a ton of documents to compress since this free download PDF compressor can batch process hundreds of PDF files simultaneously. And even if you are working with encrypted PDFs, PDFZilla PDF Compressor Pro can automatically remove the restrictions for you.

    Overall, you have a pretty straightforward offline tool that suits even novice users for a convenient process of reducing PDF file size.

    Pros:

    • Supports batch PDF compression
    • Offers a compression ratio of 23%
    • Supports encrypted PDFs
    • Allows you to pick your referred compress quality
    • Fast and easy to use

    Cons:

    • Windows-only tool

    Price: PDFZilla PDF Compressor Pro is FREE to download and use.

    Supported Platforms: Windows

    Best for: Fast and easy batch conversion of scanned PDFs with a compression ratio of up to 23%.

    Download PDFZilla PDF Compressor Pro

    #4. Adobe Acrobat

    adobe acrobat

    Adobe Acrobat is one of the best PDF compressor software considering that it pioneered the PDF format. It presents a very rich PDf compression process that gives you great control over various components. For instance, you get to decide how images (color, grayscale, or monochrome), fonts, and transparency are handled, besides letting you choose what objects and user data to discard from the PDF.

    To avoid the hassle of tweaking these options, you can just choose one of the available presets. Also, at the click of a button, you get to optimize and enhance scanned PDFs (quality or size first), not forgetting filters, and the built-in OCR that helps to extract data.

    Pros:

    • Offers PDF compression presets
    • Support partial PDF compression
    • Allows you to batch compress PDFs
    • Offers custom PDF compression options
    • Helps you to optimize PDF scans via OCR
    • Delivers high-quality output fast

    Cons:

    • Pretty pricey

    Price: Acrobat Standard DC at $12.99/month or Acrobat Pro DC at $14.99/month.

    Supported Platforms: Windows, Mac, Mobile, Web-based

    Best for: A rich and customizable PDF compression process without compromising quality (it balances the file size against the expected quality of fonts, transparency, images, and more).

    Download Adobe Acrobat

    #5. iLovePDF

    ilovepdf-pdf-compress

    iLovePDF is known to present all the tools that PDF lovers and this time boast a reliable online PDF compressor tool. With it, you can compress local files or even directly import PDFs from the integrated Google Drive and Dropbox cloud services.

    You are opened up to 3 levels of compression; Extreme Compression (offers high compression but less quality), Recommended Compression (balances between good quality and compression), and Less Compression (outputs high-quality PDFs with little compression).

    Even better, you are allowed to rotate the added PDFs as you wish and still have access to batch compression options. For those who may not want to reduce PDF file size online, an offline desktop version of this PDF compressor is also available.

    Pros:

    • Offers several compression levels
    • Batch processing is available
    • Available for online and offline use
    • Integrates Dropbox and Google Drive cloud services
    • Multiplatform
    • Strive to optimize PDFs without quality compromise

    Cons:

    • The free version offers limited features

    Price: iLovePDF offers Premium plan at $7/month or $48/year.

    Supported Platforms: Windows, Mac, Mobile, Web-based

    Best for: Reducing document file size while optimizing for maximal PDF quality, online and offline.

    Download ilovepdf

    #6. PDF Compressor

    pdf-compressor

    PDF Compressor is a dedicated online tool that helps you to reduce PDF file size for easy sharing or publishing on websites, socials, or email attachments. Different from the approach that other tools take, PDF Compressor does not change the original PDF DPI and therefore retains the print and zoom capabilities on a document.

    To save you time and effort, you are allowed to upload up to 20 files simultaneously for batch compression. Once the PDF compression process is complete, you can either download every file individually or have all the PDFs added to a single ZIP archive. Overall, this free online tool delivers exemplary output on a very simple interface.

    Pros:

    • Very simple to use
    • Retains the original DPI (quality)
    • The output files can download in a ZIP archive
    • Available for online use on multiple platforms
    • Free

    Cons:

    • Only 20 files can be batch converted at a time

    Price: PDF Compressor is FREE to use

    Supported Platforms: Web-based

    Best for: Simple, high-quality, online PDF compression on any platform.

    Download PDF Compressor

    #7. Smallpdf

    smallpdf_pdf_compressor

    Smallpdf is home to a plethora of tools that guarantee a seamless and streamlined workflow. Among the many tools, you get to appreciate a free online PDF compressor app. The most outstanding feature is that you are opened up to 2 compression modes; Basic Compression (results in medium file size and considerable high quality) and Strong Compression (outputs a small file size with good quality).

    Even better, you will be provided with information telling you the estimated file size together with the compression level as a percentage. Smallpdf is also among the few tools that can reduce scanned PDF size up to 144 DPI. Other than that, you get 100% privacy, ease of use, batch processing, and integrated cloud services.

    Pros:

    • Offers two preset conversion modes
    • Largely optimizes scanned PDF documents
    • Supports batch PDF compression
    • Available for use on multiple platforms
    • Compress PDF files of up to 5GB
    • Integrates Google Drive, Dropbox, and Smallpdf cloud services

    Cons:

    • A short 7-day trial period

    Price info: Smallpdf is available in two paid plans; Smallpdf Pro at $9/month and Smallpdf Team at $7/month for 2-50 users.

    Supported Platforms: Windows, Mac, Mobile, Web-based

    Best for: Reducing the size of a PDF document without compromising quality.

    Download Smallpdf

    Conclusion

    The best PDF compressor software is a tool that should always be in your arsenal if you want to avoid bouncebacks on websites, email clients, social media, and others when you exceed the allowed PDF file size.

    And of course, you require a program that will aptly identify and get rid of redundancy, identify patterns, and highlight document parts that can be compressed while keeping the original quality intact as much as possible. To save you the hassle of searching for that kind of tool, this article has got you acquainted with the best PDF compressor software available at your disposal. It is now time to choose one.

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