A lighter, more affordable alternative to PDF Expert with image tools included.

PDF tools comparison

PDF Expert's PDF capabilities span reading, annotation, editing, merging, splitting, compressing, and form filling. The annotation toolkit is one of the richest available, with highlight colors, underline and strikethrough options, stamps, text comments, shapes, freehand drawing, and signature placement. The inline text editor lets you click on existing text and modify it, including changing the content, font, size, and color. Form filling supports interactive PDF forms with various field types.

File Studio focuses on the structural operations: merging multiple PDFs, splitting by page range, compressing to reduce file size, converting between PDF and image formats, and removing passwords. It includes basic annotations but does not match PDF Expert's annotation depth. There is no inline text editing or form filling in File Studio.

The two products serve different primary needs. PDF Expert is for people who read, annotate, and edit PDFs as a core part of their work. File Studio is for people who need to combine, reorganize, convert, and optimize PDFs as part of a broader file management workflow. There is overlap in merging and splitting, but the emphasis is different.

Price and platform support create a clear decision point. PDF Expert costs $79.99 per year and is available only on Apple platforms. File Studio costs $29 once and works on both Mac and Windows. For Mac users who are committed to the Apple ecosystem and who primarily read and edit PDFs, PDF Expert's premium experience may be worth the ongoing cost. For anyone who also uses Windows, who needs image tools, or who wants to avoid a subscription, File Studio offers comparable core operations at a dramatically lower total cost.

Image handling

PDF Expert does not include image tools. It works exclusively with PDF documents. If you need to convert, resize, compress, or watermark images, you need a separate application. On macOS, Preview handles basic image tasks, but for batch operations or format conversions like HEIC-to-JPG, you need a dedicated tool.

File Studio includes a full image toolkit: format conversion between JPG, PNG, WebP, HEIC, and others; image compression with quality controls; batch resizing with aspect ratio preservation; cropping; watermarking with text and image overlays; and collage creation. For Mac users who currently rely on PDF Expert for PDFs and Preview for basic image work, File Studio can handle the image tasks that Preview struggles with, such as batch conversion and dedicated compression.

For users who work with both documents and images, having PDF tools and image tools in a single application reduces the number of apps they need to keep open and switch between. File Studio fills the image gap that PDF Expert leaves entirely unaddressed.

The workflow implications are meaningful in practice. A marketing professional who annotates PDF briefs in PDF Expert and then needs to resize, compress, and watermark campaign images must switch to a completely different application (or web service) for the image work. With File Studio, the transition from PDF tasks to image tasks happens within the same window. While this does not make File Studio better at PDF reading and annotation, it does make it a more versatile overall tool for people whose work spans both file types.

Privacy and data handling

PDF Expert processes files locally on your Mac or iOS device. There is no cloud upload required for core PDF operations. Readdle does offer some cloud integration features for syncing documents across devices, but the core editing and annotation work happens on-device. This is a strong privacy position that is comparable to File Studio's approach.

The main difference in the privacy discussion is not about how files are processed but about the overall value proposition. Both tools process files locally. PDF Expert costs $79.99 per year and is Mac/iOS only. File Studio costs $29 once and works on both Mac and Windows. Both keep your files on your device.

For users who prioritize local processing and are choosing between these two tools specifically, the decision comes down to whether you need PDF Expert's reading, annotation, and editing features, or whether File Studio's conversion, manipulation, and image tools better match your workflow. Privacy is a wash between the two.