List of the Top 21 PDF Compressors for iPhone in 2025

Pdftools offers robust solutions for handling vast numbers of documents, potentially reaching into the millions. Tailored for sectors that heavily rely on documentation, the Pdftools suite of SDKs aims to enhance the speed, simplicity, and overall ease of your document workflows, reducing stress along the way. Built on reliable SDKs and APIs, Pdftools products integrate effortlessly into your current systems and applications. With the capacity to process thousands of documents each minute, our tools prioritize speed and efficiency. As engineers committed to excellence, we ensure that only the most trustworthy, usable, and well-documented platforms are utilized. While file sizes can be minimized, we guarantee that quality and interactivity remain intact. Additionally, our solutions help ensure that your documents adhere to long-term archiving standards. Comprehensive documentation accompanies every aspect of our products, allowing for a seamless onboarding experience. With Pdftools, you can transform your document management approach and unlock new efficiencies.

MobiPDF, previously known as PDF Extra, serves as a user-friendly platform for reading and editing PDFs, offering features such as creating, organizing, annotating, filling, signing, converting, and sharing any PDF file. This versatile tool stands out as a cost-effective substitute for Adobe Acrobat Pro, catering to a wide array of user needs. HERE’S WHAT YOU CAN EXPECT WITH MOBIPDF: Multiple Viewing Options: Utilize a focused "Read Mode" for an uninterrupted reading experience. Sophisticated Editing Capabilities: Engage with a PDF editing interface reminiscent of Word. Bidirectional Conversions: Effortlessly transform PDFs into and from formats like Word, Excel, PowerPoint, or images. OCR Integration: Enhance scanned documents by making them searchable. Annotation Features: Utilize tools to highlight, comment, strikethrough, stamp, and more to improve your documents. Simple PDF Management: Easily reorder, compress, split, and merge PDFs as you need. Signing and Security: Incorporate signatures, create and fill out forms, and safeguard your PDFs with passwords, encryption, and digital certificates. Offline Functionality: Continue working on your files without needing an internet connection. Instant Translation: Translate any PDF into over 50 languages with just a click. Overall, MobiPDF combines essential features and user-friendly design, making it a reliable choice for anyone needing comprehensive PDF tools.

Foxit PDF Editor provides a comprehensive set of tools for editing, viewing, creating, organizing, sharing, collaborating, securing, OCR processing, exporting, and e-signing PDF documents. It caters to both small and medium-sized businesses as well as larger enterprises, and is accessible across various platforms including desktop, mobile, and web—making it convenient for use at home, in the office, or while traveling. Its affordability and user-friendly design ensure that even those new to the software can quickly get up to speed, which is especially beneficial for remote workers and international teams who need to communicate and provide feedback around the clock from any location. The software is ideal for both individuals and teams tasked with the creation, review, editing, management, sharing, and securing of PDF files. For larger organizations, Foxit PDF Editor Pro includes enhanced features such as advanced editing, collaboration tools, and robust security options that are often necessary in more complex business environments. In this way, Foxit PDF Editor enables seamless workflows and enhances productivity across various industries.

Adobe Acrobat provides your team with smooth connectivity through streamlined workflows accessible on desktop, mobile, and web platforms, regardless of where you work. As your needs evolve, your methods of working must also adapt. This is why we continually strive to enhance and roll out new features within Adobe Acrobat. By choosing Adobe Acrobat Pro, you gain instant access to the newest functionalities as they are released. Currently, more than five million organizations around the globe rely on Acrobat DC for tasks like creating and editing sophisticated PDFs, converting them into Microsoft Office formats, and much more. Whether you are on the go or collaborating with teammates situated in different locations, you can trust Adobe Acrobat to help you manage your tasks efficiently. The platform allows you to share PDFs for viewing, reviewing, and signing from any device and location, enabling you to easily monitor the progress of your documents and ensuring seamless collaboration. Additionally, Adobe Acrobat's adaptability empowers teams to thrive in any work environment, promoting both productivity and creativity while simplifying the workflow process. In this rapidly changing landscape, having a reliable tool like Adobe Acrobat can make a significant difference in achieving your goals.

Smallpdf, hailing from Switzerland—a country renowned for its precision in watchmaking, banking excellence, and minimalist design—has garnered multiple accolades for its cutting-edge document management solutions. Established in 2013, the company offers a straightforward, dependable, and secure alternative to cumbersome PDF software options. With a user base exceeding 500 million individuals and 100,000 businesses across 24 languages and every corner of the globe, including the remote regions of Antarctica, Smallpdf has become the go-to choice for PDF management. Its tools are designed to enhance both professional and personal workflows, thereby boosting efficiency and transforming document handling into a hassle-free experience. Users can easily compress, convert, edit, sign, protect, and unlock PDFs in just a few simple steps, making document management more accessible than ever before. This commitment to user-friendliness has solidified Smallpdf's reputation as a beloved resource for anyone dealing with PDF files.

A robust, cloud-based solution that enhances static PDFs by converting them into dynamic and engaging experiences for both the sender and the recipient. pdfFiller serves as a centralized platform for storing, auditing, searching, electronically signing, and managing documents and forms efficiently. This innovative tool streamlines workflows and improves collaboration, making document handling more effective for everyone involved.

PDF Reader Pro stands out as a comprehensive PDF solution that caters to all your document management needs. It boasts an impressive array of features, including reading, annotating, editing, optical character recognition (OCR), signing, creating and filling out PDF forms, bookmarking, outlining, text-to-speech (TTS), managing tables, and converting PDF files, making it versatile for any device. Whether you are crafting a PDF on an iPhone or signing a document on your Android phone, PDF Reader Pro ensures that all tasks can be accomplished with ease and efficiency. In addition to these core functionalities, it offers a variety of supplementary features such as presentation tools, linking options, stamping, compression, security measures, background customization, header and footer insertion, Bates numbering, text searching, text box support, Touch Bar compatibility, annotation export, and multiple conversion capabilities. Moreover, it serves as the premier PDF to Office converter, allowing users to export from PDF to numerous formats including Microsoft Word (.docx), PowerPoint (.pptx), Excel (.xlsx), RTF, HTML, text, images, CSV, and more, all without the need for an internet connection. PDF Reader Pro also provides the ability to convert PDFs into various image formats such as JPG, PNG, BMP, GIF, TIFF, TGA, and JP2, ensuring that you have all the tools you need for your PDF tasks at your fingertips.

KDAN PDF Reader serves as a comprehensive PDF management solution, allowing users to edit, sign, perform OCR scans, convert, annotate, and fill out forms within PDF documents seamlessly. By incorporating advanced AI capabilities, it enhances the efficiency of your document workflows! Tailored for Mac, iPhone, and iPad users, KDAN PDF Reader is a reliable choice for millions, thanks to its extensive features and user-friendly design. KEY FEATURES EDIT TEXT & PDF • Correct mistakes and typos directly in the PDF - replace, insert, or remove text in documents • Modify images by adding, editing, cropping, and adjusting them within PDFs • Include headers and footers for better organization • Utilize Bates numbering for effective referencing, tracking, and systematic arrangement • Apply stamps or dynamic stamps to convey status, offer feedback, and emphasize key information in the document CONVERT PDF • Offline file conversion - change files without needing an internet connection • Transform PDFs into Office file formats, images, or ePub • Supported formats include docx, xlsx, csv, pptx, rtf, txt, html, jpg, png, BMP, jpg200, pub, and MOBI SIGN & FORMS • Fill out and modify forms as needed • Design fillable forms complete with buttons, checkboxes, and list boxes • Create and apply signatures directly on PDFs • Generate signatures using a trackpad, keyboard, or images EDIT PAGE • Combine and separate PDFs effortlessly • Extract, rearrange, rotate, remove, and crop individual PDF pages • Modify the background color of PDFs for enhanced visibility • Add pages from other documents for comprehensive project management. This makes KDAN PDF Reader not just a tool, but a complete solution for all your PDF needs.

UPDF provides a comprehensive solution for editing, annotating, and managing PDF files across platforms like Windows, Mac, iOS, and Android. This versatile application consolidates all essential tools into a single user-friendly interface, designed to cater to the preferences of both novice and experienced users who appreciate an aesthetically pleasing layout. Among its key features, UPDF allows users to edit PDF documents by adding, deleting, and modifying text properties, including font style, color, and size, while also enabling image manipulation such as cropping, rotating, and extracting. Additionally, users can annotate PDFs by highlighting, underlining, or striking through text, and can easily insert shapes, sticky notes, and text boxes for improved communication. Another significant feature is the ability to manage PDF pages, which includes options to rotate, delete, and extract specific pages as needed. Furthermore, UPDF enhances the reading experience by offering various viewing modes, including both single-page and double-page formats, ensuring flexibility for all types of users. With such a robust set of functionalities, UPDF stands out as an invaluable tool for anyone working with PDF documents.

PDF24 offers a variety of easy-to-use online tools for handling PDF files, created by geek software GmbH, a German company that has been in operation since 2006. This platform provides free solutions for numerous PDF-related issues, accessible through both downloadable software and web applications, with the widely-used PDF24 Creator being among them. Though they operate with a small team, the PDF24 staff is passionately dedicated to improving PDF solutions that serve countless users around the world. Their commitment has resulted in the successful introduction of the PDF24 Creator and a range of online tools that have attracted millions of users globally. Additionally, PDF24 includes PDF24 Fax, an online service that allows users to send and receive faxes without the need for a physical fax machine. The ongoing focus on innovation ensures that PDF24 remains a trusted source for all PDF-related needs, continually evolving to meet the demands of its users. Furthermore, the user-friendly interface of PDF24 tools enhances the overall experience, making document management seamless and efficient.

Tungsten PowerPDF equips users with comprehensive tools for creating, converting, editing, sharing, and electronically signing PDF documents. This award-winning PDF Editor is crafted for ease of use, affordability, and enhanced security. With its intuitive Office-style interface, you can effortlessly create, convert, and compile your PDF files in just a few minutes. Power PDF boasts advanced features, including robust redaction options and security measures suitable for both businesses and individual users. It is designed for seamless integration with Windows 10 desktops, Microsoft Surface, Mac OS Big Sur, and more. Users can easily create, edit, and convert PDFs to and from formats such as Word, Excel, PowerPoint, JPG, HTML, and beyond. Notably, all functionalities are encompassed in a single purchase, avoiding the need for additional fees. Furthermore, the software allows you to set up encrypted passwords, manage permissions, and redact any sensitive information or private metadata effectively. This makes Tungsten PowerPDF a powerful choice for those seeking a reliable PDF solution.

Everything you require for handling PDFs is conveniently located in one spot. You have all the necessary tools for managing PDFs right at your fingertips. Each tool is completely free and user-friendly. In just a few clicks, you can merge, split, compress, convert, rotate, unlock, watermark, and transform PDFs. The intuitive PDF merger allows you to assemble documents in any desired sequence. You can also effortlessly extract individual pages or groups of pages to create new PDF files. Optimize the quality of your PDFs while minimizing the file size for easier sharing. With remarkable precision, convert PDFs into WORD documents and POWERPOINT presentations. Additionally, you can manage sign and certificate PDF documents, request digital signatures, or add your own signatures to your files. This comprehensive suite simplifies all your PDF-related tasks.

PDFgear is a comprehensive PDF tool that enables users to view, edit, convert, sign, annotate, and organize their documents seamlessly across Windows, MacOS, and iOS platforms. With its intuitive and user-friendly interface, PDFgear ensures a smooth experience for reading and editing documents without any distractions. The PDFgear Copilot serves as an advanced personal assistant that surpasses the capabilities of a typical document assistant, utilizing AI technology to help users navigate all features of PDFgear and interact with their PDF files. If you find yourself overwhelmed by the multitude of functions or content within your documents, simply reach out to Copilot for assistance—it's there to answer any questions you might have! Working with PDFs feels effortless and enjoyable with PDFgear, making your tasks as pleasant as a leisurely walk through a beautiful garden. Explore the full potential of your PDF documents effortlessly with this innovative tool!

PDFelement serves as an all-in-one PDF solution driven by artificial intelligence, providing a quick, intelligent, cost-effective, and user-friendly approach to handling PDF documents on desktop, mobile, and web platforms. It ensures an exceptional user experience, making it a strong alternative to Adobe® Acrobat® that suits both individuals and small businesses perfectly. The company is dedicated to leading the PDF technology landscape by continuously innovating and enhancing its product to adapt to the changing needs of its users. Key features that set it apart include: Intelligent: It offers the most advanced method for managing PDF forms and documents, utilizing AI capabilities. Versatile: The desktop application is accessible through an annual or perpetual license fee, providing flexibility to users. Cost-effective: It provides features that rival those of Adobe Acrobat DC while being available at a significantly reduced price, offering savings of up to 50%. Extremely Fast: The software is designed to be lightweight, ensuring that even beginners enjoy a smoother user experience with a minimal learning curve. In addition, PDFelement’s commitment to user satisfaction is evident in its regular updates and responsive customer support.

Cloud-based tools for document conversion and management empower businesses to easily scan, edit, and share JPG and PDF files. Scanner Go is a complimentary application designed for efficient PDF scanning, making it straightforward to edit and convert your PDF documents. With this tool, you can scan, transform, and modify your files with ease and without complications. With over 10 million users, Scanner Go has become one of the leading applications for handling PDFs. Its design prioritizes user-friendliness, dependability, and security, stripping away unnecessary features while enhancing integration for an unrivaled user experience. Scanner Go enhances productivity through its robust yet simple tools, allowing for effortless integration into daily workflows and streamlining document management for users. Features such as file compression, conversion, editing, and e-signature capabilities make it a practical choice for managing PDF files efficiently, ensuring that users can handle their documents with the utmost ease and functionality.

LightPDF was designed to simplify the handling of PDF documents for users of all levels. With its user-friendly interface, this software enables individuals to effortlessly read, edit, and convert PDF files. The integrated editing features of the program include: 1. Editing capabilities: You can modify your PDF by adding text, annotating, and inserting hyperlinks, as well as incorporating headers or footers. 2. Conversion options: Easily convert PDF files into formats like Word, Excel, PPT, or JPG. 3. Page management: You have the ability to insert or delete pages, rotate them, and perform actions like extracting, replacing, splitting, or merging pages. 4. Signing features: Users can add either a handwritten signature or a digital signature to their PDFs. 5. Security measures: Protect your documents by adding a password to lock your PDF files. 6. Additional functionalities: The software also includes features such as OCR for text recognition, PDF compression, and background addition, among others, making it a versatile tool for various PDF needs.

We act as the bridge between tangible documents and digital storage solutions, delivering streamlined PDF workflows that improve your productivity while reducing administrative burdens. Editing PDFs has never been easier with Google Workspace, as you can launch Lumin from services like Gmail, Google Drive, or Google Classroom. The uploading of legacy documents to the cloud has reached unprecedented ease. Ensure your team remains synchronized with live feedback options and manual editing features. With Lumin Sign, you can manage projects, negotiate terms, and secure signatures all from a single platform. Our generous free plan is particularly beneficial for K-12 educators and students. Our services are supported by a comprehensive and continually updated security framework. Furthermore, we utilize a Google-verified storage system that guarantees your documents stay within Google Drive's protected environment. Enhance collaboration among current team members and attract new talent with the capabilities of Lumin and Lumin Sign. Although each of our innovative offerings is effective on its own, using them together amplifies their benefits. Lumin not only streamlines your team's workflow but also significantly cuts down on unnecessary communication. With a cloud workspace that integrates smoothly with Google, experience the advantages of real-time collaboration like never before, empowering your organization to achieve its goals efficiently. This seamless integration fosters a more productive atmosphere, allowing teams to focus on what truly matters.

This modern cloud infrastructure offers an array of freemium microservices and solutions tailored for productivity across different sectors, featuring compression and unified APIs that function effortlessly on any platform, client, or programming language, supplemented by an innovative SaaS licensing model. Extensive guides and detailed documentation provide insights into essential processes such as authentication, API communication, document processing, and error management, while also emphasizing best practices for achieving peak efficiency. A straightforward and intuitive ASP.NET Core MVC application exemplifies the integration of DocuVieware through the PassportPDF Rest API for document visualization purposes. This application is intended to grow over time, with plans to introduce additional similar demonstrations in the future. Additionally, a simplified ASP.NET 4.6.2 application further illustrates how to utilize DocuVieware via the PassportPDF Rest API, showcasing the flexibility and adaptability of these tools across various development platforms. Users can expect continuous updates and improvements, ensuring that they have access to the latest features and enhancements.

PDFsail is an advanced online PDF tool designed to enhance productivity in the workplace. This versatile platform provides an array of valuable features that simplify everyday PDF document management, all without the need for software installation or downloads. Users can effortlessly convert PDF files into formats such as Word, Excel, PowerPoint, images, and more. Additionally, it allows for quick compression of PDF files, ensuring that document quality is preserved for easy storage and sharing. The editing capabilities enable users to modify PDF content directly online by adding annotations, signatures, or images to suit their needs. Furthermore, thanks to AI technology, users can efficiently summarize PDF content and receive answers to questions derived from the documents. Lastly, PDFsail supports both merging multiple PDF files into a single document and splitting larger files into smaller segments for improved organization. This comprehensive suite of tools makes PDFsail an essential resource for anyone working with PDF documents.

This toolkit for processing and cleaning documents and images empowers developers to seamlessly incorporate various document handling features, such as image editing, compression, and enhancement, into their software. With ImageGear, applications can efficiently perform tasks like deskewing and removing lines and speckles from files, ensuring that images are clear and professional. The advanced color-processing capabilities of ImageGear enhance image quality while also minimizing the size of compressed files. This software development kit (SDK) offers a wealth of APIs designed for thorough image processing and cleanup, making it easier than ever to enhance application functionality. Additionally, ImageGear is instrumental in fulfilling all aspects of the document lifecycle, allowing .NET developers to integrate strong PDF features into their applications. Users can not only view and annotate PDF pages but also compress them to improve efficiency. Explore the extensive PDF manipulation features provided by ImageGear to elevate the performance and functionality of your applications even further.

Convert your PDF files into various formats like Word, Excel, and PowerPoint, while also allowing for the transformation of different file types into PDF documents. You can conveniently store and share your files at no cost. Cometdocs has earned a reputation for providing exceptional document conversion services, trusted by over 3 million users to date. Initially introduced in 2009 as a basic file conversion tool, it has since broadened its range of offerings to include a variety of complimentary services such as document sharing, transfer, and storage options. The platform aims to provide a holistic web-based solution to fulfill all your document management needs while ensuring a secure user experience. With a strong emphasis on user privacy, Cometdocs assures that your personal details, including files and email addresses, will stay confidential and will not be shared with third parties. Most significantly, users can access all these features without incurring any charges, making Cometdocs a user-friendly choice for everyone. In addition to these benefits, Cometdocs is continuously evolving to meet the changing demands of its user base with innovative solutions. As it progresses, the platform remains committed to enhancing its services to better serve its community.