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I’m building an iOS application that needs a lightweight, well-structured SDK focused on one core task: precision photo cropping. The library must be written in Swift (latest stable version) and integrate cleanly with UIKit or SwiftUI projects through Swift Package Manager. JPEG will remain the default input/output, but the code must also read and export GIF files without losing animation frames or quality. Key points to keep in mind • Cropping workflow: free-form and preset aspect-ratios, live pinch/zoom, and optional rotation before commit. • Performance: smooth, 60 fps interaction on devices back to iPhone 11, with memory use optimized for large images. • Thread safety: heavy image work moved off the main thread so the host app’s UI never hangs. • Documentation: clear inline comments plus a concise markdown guide covering installation, public APIs, and sample calls. • Demo: a minimalist example app that showcases loading a JPEG or GIF, cropping it, and exporting the result to Photos or local storage. • Testing: unit tests for the cropping engine and GIF handling. Acceptance criteria 1. Source compiles with Xcode’s default build settings and passes all provided tests. 2. Cropping a 4000×3000 JPEG on an iPhone 12 completes in under 0.5 s, with memory peaks below 120 MB. 3. A multi-frame GIF retains its animation and transparency after a crop and save cycle. 4. Public API names, parameters, and usage examples match the documentation. Once the repo passes review, I’ll merge it into our main project and release payment. Looking forward to seeing your clean, efficient code drive this feature.
Project ID: 40714939
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47 freelancers are bidding on average $12 USD/hour for this job

Hello, We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time. We are 25 years in this business and our technical specialists have strong experience in Mobile App Development, iPhone, Objective C, Photo Editing, Swift, Swift Package Manager, SwiftUI, iOS and other technologies relevant to your project. Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews. Please contact us via Freelancer Chat to discuss your project in details. Best regards, Sales department Tangram Canada Inc.
$20 USD in 5 days
7.2
7.2

Hi, I can develop a lightweight Swift photo-cropping SDK with clean Swift Package Manager integration for UIKit and SwiftUI projects. I can handle: Free-form and preset aspect-ratio cropping Pinch/zoom and optional rotation High-performance processing with background threading Large-image memory optimization and smooth UI interaction JPEG and animated GIF import/export with frame and transparency preservation Clean public APIs with documentation and usage examples Minimal demo app for JPEG/GIF workflows Unit tests for cropping and GIF processing I’ll structure the package cleanly and focus on meeting your 0.5s processing and memory requirements on supported devices. Ready to review the repository requirements and start development.
$12 USD in 40 days
5.3
5.3

With over 8 years in software development, I've garnered valuable skills in Mobile App Development that make me a perfect fit for your iOS Photo Editing SDK project. In line with your Specificatons, I have deep expertise in building lightweight and well-structured SDKs which as you'd expect for this project, is a priority. I've worked extensively with Swift, the latest one too and my work on UIKit and SwiftUI projects with Swift Package Manager has been top-notch. To further assure you of my qualification - I utilize advanced techniques to enhance performance, enabling smooth, 60 fps interactions even on older devices like the iPhone 11. Additionally, managing heavy image work on separate threads is not just something I understand but implemented several times. High-performance with optimized memory utilization is what you can rely on me for. My documentation skills are something I take extreme pride in. With concise markdown guides and clear inline comments, none of the APIs or usage will be found wanting. Moreover, my projects always come complete with comprehensive unit tests ensuring all functionalities are foolproof — another requirement essential for this project. Thanks for considering me; I look forward to contributing my wealth of experience to your team!
$8 USD in 40 days
4.8
4.8

Hello, I’m excited about the opportunity to help you build a lightweight SDK for precision photo cropping in your iOS application. Your project requirements align perfectly with my expertise in developing high-performance, thread-safe libraries in Swift. I have extensive experience creating Swift packages that integrate seamlessly with UIKit and SwiftUI, focusing on performance and user experience. My background includes optimizing image processing tasks for smooth interactions, ensuring memory efficiency, and implementing robust documentation practices. To achieve your goals, I propose the following approach: - Develop a cropping workflow that supports free-form and preset aspect ratios, with live pinch/zoom and rotation capabilities. - Optimize the SDK for 60 fps interactions, ensuring that heavy image processing tasks run off the main thread. - Create clear inline documentation and a markdown guide, along with a minimalist demo app to showcase the SDK's functionality. - Implement comprehensive unit tests for both the cropping engine and GIF handling to ensure reliability and performance. I am eager to bring my skills to your project and deliver the high-quality results you expect. I can start immediately and would love to discuss any further details at your convenience. Thank you for considering my proposal!
$12.01 USD in 40 days
4.8
4.8

Hi, You’re not just looking for a crop UI—you need a **production-ready Swift SDK** that stays smooth with large images, handles animated GIFs correctly, and can be dropped into UIKit or SwiftUI through SPM. That’s the part I’d focus on first. I can build this with: * Swift + Swift Package Manager * Free-form and preset aspect-ratio cropping * Smooth pinch/zoom and optional rotation * Background image processing to keep UI responsive * Memory-conscious handling of 4000×3000+ images * GIF frame preservation, including animation and transparency * Clean public APIs suitable for UIKit and SwiftUI * Unit tests covering cropping and GIF processing * A minimal demo app + concise Markdown documentation I’d structure the SDK so the UI layer stays lightweight while the expensive decoding, cropping, frame processing, and encoding work happen off the main thread. I’ll also test specifically against your **iPhone 11+ / 60 FPS / <120 MB memory / <0.5s JPEG** acceptance targets rather than treating performance as an afterthought. The final delivery would include the Swift package, demo application, tests, documentation, and a clean API ready to integrate into your main project. If you share the existing repository or preferred API shape, I can review it and suggest the SDK structure before implementation.
$10 USD in 40 days
4.6
4.6

With over 8 years of proven success in mobile app development, I possess the necessary expertise and skill set to deliver a high-quality iOS Photo Editing SDK for your project. My experience, particularly with Flutter and React Native for cross-platform apps, means I am well-versed in optimizing performance for large images and ensuring smooth user interaction - key qualities your project demands. Not only have I built numerous successful apps utilizing photo editing functionalities, but I am also proficient in working with Swift, UIKit and SwiftUI through Swift Package Manager - making me proficiently familiar with the frameworks required to get your task done efficiently. Additionally, my experience extends to working with heavy image manipulation off the main thread to maintain app responsiveness. Not only would I focus on delivering clean and efficient code for your precision cropping SDK, but I also understand the importance of thorough documentation. Not only will there be inline comments for ease of understanding, but I'd also provide a concise markdown guide that covers installation, public APIs, and sample calls to ensure seamless integration into your existing project and maximum functionality comprehension. Choosing me for this job guarantees diligent adherence to your acceptance criteria under funnel management. Looking forward to exceeding your expectations!
$10 USD in 40 days
4.0
4.0

Hi there, I can build this as a lightweight Swift SDK focused on reliable, high-performance photo cropping. I have 15+ years of experience in iOS development and can structure the library for clean Swift Package Manager integration with both UIKit and SwiftUI. I’ll cover: Free-form and preset aspect-ratio cropping Pinch/zoom with optional rotation JPEG and animated GIF input/output, preserving frames and transparency Off-main-thread image processing for smooth UI interaction Memory-efficient handling of large images Clear public APIs, inline documentation, and a concise Markdown guide Minimal demo app for JPEG/GIF loading, cropping, and exporting Unit tests for the cropping engine and GIF processing I’ll also pay close attention to the stated performance targets, including the 4000×3000 JPEG benchmark and memory limits on iPhone 12. The SDK will be kept modular and easy to integrate into your main project, with the API and documentation aligned throughout. I’d be happy to work against your acceptance criteria and provide a clean, review-ready repository.
$12 USD in 40 days
3.7
3.7

Hello, I can develop a lightweight Swift photo-cropping SDK supporting free-form/preset ratios, pinch-to-zoom, rotation, JPEG, and animated GIF handling. I’ll integrate Swift Package Manager compatibility with UIKit/SwiftUI, optimize large-image processing through background execution, and focus on smooth performance and memory efficiency. I’ll also provide a demo app, unit tests, inline documentation, and a clear Markdown integration guide. With 5+ years of development experience, I offer flexible pricing. Let’s discuss the technical requirements. Best regards, Rohan M.
$10 USD in 84 days
3.7
3.7

With over six years of experience in developing high-performance iOS applications using Objective-C, Swift, UIKit, SwiftUI and MVVM architecture, as well as React Native, I specialise in creating user-centric solutions and integrating robust API systems. I am dedicated to delivering tailored, high-quality applications that align with your vision. Let us collaborate to realise your ideas and create a standout iOS app. Best regards, Pradeep Maretha
$12 USD in 40 days
3.8
3.8

Hi, This SDK needs to stay lightweight without compromising the editing experience—especially GIF frame preservation, large-image memory usage, and smooth interaction on iPhone 11+. Webix Infotech can develop the Swift SDK as a clean Swift Package Manager module with UIKit/SwiftUI compatibility. The cropping engine can support free-form and preset ratios, pinch/zoom, and rotation, while heavy image processing runs off the main thread to keep the UI responsive. GIF handling will preserve frames, animation, and transparency through the crop/export cycle. I’ll also include the minimalist demo app, unit tests, inline documentation, and a Markdown API guide covering installation and usage. I’ll validate the implementation against your stated performance and memory targets before delivery and keep the public API aligned with the documentation. Share the preferred minimum iOS version and test setup, and I can confirm the implementation approach and milestones. Best Regards Prachi Webix Infotech
$8 USD in 40 days
2.2
2.2

THE RIGHT SDK CAN MAKE OR BREAK YOUR APP I’d love to help bring your vision to life. I have extensive experience developing Swift libraries, ensuring they integrate seamlessly with UIKit and SwiftUI while optimizing performance. What specific aspect ratios do you envision for the cropping presets? Also, do you have any preferences for the documentation style? Connecting to your project could be as simple as a quick chat to flesh out the details. Regards, Johan
$8 USD in 14 days
0.6
0.6

I can build a lightweight, production-ready Swift photo-cropping SDK with a clean Swift Package Manager setup, designed for both UIKit and SwiftUI integration. I’ll implement free-form and preset aspect-ratio cropping with smooth pinch/zoom and rotation, while keeping heavy image processing off the main thread. For large images, I’ll use memory-conscious processing to maintain responsive 60 FPS interaction on devices from iPhone 11 onward and meet your JPEG performance target. GIF support will be handled at the frame level so cropping/export preserves animation, frame timing, transparency, and image quality rather than treating the GIF as a single static image. The SDK will include a clean public API, inline documentation, Markdown installation/usage guide, minimalist demo app for JPEG/GIF workflows, and unit tests covering the cropping engine and animated GIF handling. I’ll also validate the stated performance and memory requirements before handoff. I’m comfortable working directly against your acceptance criteria and delivering a clean codebase ready to merge into the main project. Regards, M Akif
$12 USD in 40 days
0.0
0.0

You need a production-ready Swift SDK that handles precision cropping across UIKit and SwiftUI projects, with the harder challenge being animated GIF preservation through a crop cycle without frame loss or transparency corruption — that is where most off-the-shelf solutions fail. Here is my approach. The SDK ships as a Swift Package with three focused layers: a CropEngine handling geometry math, aspect-ratio presets, and rotation on a background DispatchQueue; a UIKit-native CropViewController with a CADisplayLink-driven 60fps canvas for pinch/zoom; and a MediaIO module using ImageIO directly to decode and re-encode GIF frame-by-frame, preserving delays and alpha channels. SwiftUI gets a thin CropView wrapper. Output for JPEG uses vImage for the sub-0.5s, sub-120MB processing target on iPhone 11 and later. My strengths here are deep ImageIO and vImage experience, SPM library architecture, and writing documentation developers actually use. I have built performance-critical image pipelines where memory discipline was non-negotiable. Timeline: SDK core and GIF module in week one, demo app and thread-safety hardening in week two, unit tests and markdown docs in week three. One question before I scope the final milestone: do you need the demo app submitted to TestFlight, or is a runnable local Xcode project sufficient for acceptance?
$11.64 USD in 7 days
0.0
0.0

We possess the precise skill set to develop the lightweight photo editing SDK you need, ready to deliver a solution focused on precision cropping. Our experience with Swift and integrating with UIKit and SwiftUI through Swift Package Manager aligns perfectly with your requirements. We can ensure smooth performance at 60 fps, optimizing memory usage for large images, and implementing thread safety to prevent UI hangs. We noticed the emphasis on supporting both JPEG and GIF formats while maintaining quality and animation frames. Our approach includes implementing free-form cropping, live pinch/zoom, and providing clear documentation. Could you clarify if there are specific libraries or tools you'd prefer for unit testing? We are eager to discuss how we can help bring your project to life, and even if we don’t proceed together, we’ll ensure you gain valuable insights. Regards, UzairPatell.
$8 USD in 7 days
0.0
0.0

I’m an iOS developer specializing in Swift, SwiftUI, UIKit, and production SDK development. In my current role, I maintain a white-label iOS app and SDK used by 30+ enterprise clients, including cross-platform bridges and automated release workflows. For this SDK, I would keep the cropping engine independent from the UI layer, expose a clean Swift Package Manager API, and support both UIKit and SwiftUI integration. Image processing would run off the main thread, with focused benchmarks for the JPEG performance and memory targets. GIF frames, timing, transparency, and metadata would be preserved through the crop/export cycle. I would also deliver unit tests, concise API documentation, and the requested demo app. Before implementation, I would confirm the minimum iOS version, default aspect-ratio presets, and whether the GIF crop rectangle should remain identical across every frame.
$12 USD in 20 days
0.0
0.0

Hello, I’m Ankur Hardiya, a friendly freelance developer with an awesome team. I read your requirement for ios photo editing SDK and I’m super excited to develop and design a fantastic Android and IOS application for you. With my experience in Flutter and native languages, I can build high-performing apps for both Android and iOS platforms. Whether you need an eCommerce app, a custom business app, or anything in between, I can deliver: * Native app experience for optimal performance * User-friendly interface and intuitive navigation * Seamless integration with backend systems * Ongoing maintenance and updates I’m passionate about creating mobile apps that make a difference, and I’m eager to discuss your project in detail. Thanks a bunch for thinking of me for your project. I’m all set to turn your ideas into something amazing in today’s competitive world. Regards, Ankur Hardiya
$30 USD in 20 days
0.0
0.0

With a strong background in Mobile App Development and specializations in iOS platforms, I am confident that I can deliver on the requirements of your iOS Photo Editing SDK project. My expertise extends to UIKit and SwiftUI through Swift Package Manager, fitting ideally within your prerequisites. In addition, my proficiency in working with JPEG and GIF files, without compromising animation frames or quality, aligns perfectly with your needs. One notable advantage you'll gain by collaborating with me is my meticulous approach to performance optimization. I guarantee smooth interactions with a consistent 60 fps even on older devices like iPhone 11, while ensuring memory usage remains optimized for any image size you throw at it. Plus, my robust knowledge of thread safety ensures your host app's UI will never hang, as heavy image works are delegated off the main thread. I fully recognize the value of clean codes and comprehensive documentation, therefore, I assure you both. Notably, I will not only provide clear inline comments but also furnish a markdown guide that covers installation, public APIs, and sample calls. With these qualities along with XCTestCase-tested cropping engine and GIF handling functionality, I believe I can successfully drive this feature for you. Let's bring your vision to life while hitting all your acceptance criteria!
$19 USD in 48 days
0.0
0.0

Hello, I can edit your video according to your requirements. I can add smooth cuts, transitions, captions, music, and attractive effects. I will make sure the final video is clean and engaging. I am ready to start and can deliver the work on time. Thank you.
$12 USD in 40 days
0.0
0.0

⚡ MOST FREELANCERS WILL TELL YOU WHAT THEY CAN DO. I’LL SHOW YOU WHAT I’VE ALREADY DONE I recently developed a photo editing SDK for an iOS app that required precision cropping and smooth performance on older devices. The result was a library that maintained a 60 fps interaction rate even on an iPhone 8, while successfully handling large image files without memory spikes. I have over five years of experience in Swift development, focusing on performance optimization and seamless integration with UIKit and SwiftUI. My previous projects involved creating lightweight libraries that prioritize thread safety and user experience, aligning perfectly with your requirements. I understand your goals of achieving a fast, responsive cropping tool that also handles GIF files adeptly. I will ensure the SDK meets all performance benchmarks while providing thorough documentation and a demo app to facilitate easy integration. I’m committed to delivering clean, efficient code that enhances your application’s capabilities. The difference between an average result and an exceptional one is usually decided before the work even begins. Regards, luan
$8 USD in 7 days
0.0
0.0

Hi there, What I see here is an SDK engineering problem, not simply a cropping UI. The important part is keeping the public API lightweight while moving image processing off the main thread and handling animated GIFs without breaking frames or transparency. I have a team experienced in native iOS, Swift, UIKit/SwiftUI, image processing, and performance optimization. I’d build this as a Swift Package Manager library with a clean separation between the cropping engine, rendering/export pipeline, and UI layer. We can handle: * Free-form and preset aspect-ratio cropping * Pinch/zoom, pan, and optional rotation * JPEG and animated GIF import/export * Frame-by-frame GIF cropping while preserving animation/transparency * Background processing and thread-safe APIs * Memory-conscious handling of large images * 60 FPS interaction targeting iPhone 11+ * Minimal UIKit/SwiftUI demo application * Photos/local-storage export * Unit tests for cropping and GIF processing * Inline documentation and concise Markdown integration guide * Xcode build validation against your acceptance criteria I’d benchmark the 4000×3000 JPEG workflow and memory usage on a real iPhone 12 rather than relying only on simulator results. GIF handling would also be tested across frame count, transparency, and export integrity. One question: should the public cropping API remain UI-framework agnostic, with UIKit/SwiftUI adapters kept in the demo/integration layer? Best, Rajat Trivedi
$12 USD in 40 days
0.0
0.0

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