Comparison

PDF Studio vs PDF Editor Converter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PDF Studio

Features
Read full description

PDF Studio is the all-in-one PDF toolkit for iPhone — convert any document to PDF, scan paper documents with built-in OCR, edit and annotate PDFs, sign with your finger, and organize files with a complete suite of professional tools. Everything runs on your device. No cloud uploads. No tracking. Just speed and privacy. CONVERT — 8 FORMATS Word (.doc / .docx) → PDF Excel (.xls / .xlsx) → PDF • PowerPoint (.ppt / .pptx) → PDF Images (JPG, PNG, HEIC) → PDF (single & batch) PDF → Word (.docx) PDF → Excel (.csv) PDF → JPG / images PDF → PowerPoint pages Convert dozens of files in seconds with our native engine. No file size limits. No watermarks. SCAN — SMART DOCUMENT SCANNER Auto edge detection with VisionKit Multi-page capture AI-powered OCR — extract text from any scan Vietnamese + English OCR built in Import from Photo Library Pinch-zoom preview & individual page management Save scans as searchable, shareable PDFs EDIT — FULL ANNOTATION SUITE Highlight text in any colour Free-form drawing with adjustable brush Add text — pinch to scale, drag to move, rotate freely Hand-drawn signatures via PencilKit (Apple Pencil supported) APPROVED stamp for documents Eraser tool to remove any annotation Tap any annotation to edit / move / resize ORGANIZE — PRO PDF TOOLS Compress PDF — adjustable quality slider Merge multiple PDFs into one Split a PDF into individual pages Rotate pages to any angle Set password protection Add custom text watermarks Insert page numbers (5 positions, customizable) Extract images from PDF 10 LANGUAGES English, French, German, Spanish, Portuguese (Brazil), Portuguese, Russian, Chinese (Simplified), Indonesian, Hindi 100% PRIVACY-FIRST All processing happens on your iPhone No internet required for any feature No file uploads to any server No accounts, no sign-up, no tracking Your documents never leave your device WHY PDF STUDIO? Beautiful, modern interface designed for iOS Lightning-fast — no waiting for cloud uploads Works completely offline Native PDFKit, Core Text & PencilKit integration Frequent updates with new features PERFECT FOR Students annotating course materials and scanning textbooks Professionals signing contracts and merging reports on the go Travelers scanning receipts and IDs without internet Anyone who needs a fast, private PDF helper Get organized today. Download PDF Studio and experience the simplest, most powerful PDF app on iPhone. Privacy: chuminhson.netlify.app/policy Terms: chuminhson.netlify.app/terms

About

PDF Editor Converter

Features
Read full description

PDF Editor Converter is your all-in-one offline PDF toolbox for iPhone and iPad. Edit, merge, split, compress, convert, sign, and secure PDFs with 74+ professional tools—without uploading files to the cloud. PRIVACY FIRST — 100% ON-DEVICE Every operation runs locally on your device. Your documents never leave your iPhone or iPad. Optional RFC 3161 timestamping sends only a document hash, never your file content. EDIT & ANNOTATE • PDF Editor Workbench: preview pages, edit text in place, add annotations, and export in one flow • Highlight, draw, add notes, stamps, images, and watermarks • Fill PDF forms, redact sensitive content, and edit bookmarks/table of contents SCAN & OCR (MOBILE) • Scan documents to PDF with your camera—multi-page capture with enhance, grayscale, and black-and-white filters • On-device OCR for scanned PDFs—make text searchable without sending files online ORGANIZE PAGES • Merge PDFs (sequential or interleaved for double-sided scans) • Split by page, range, chapter, file size, or delimiter • Rotate, crop, reorder pages with drag-and-drop, extract or delete pages • N-up layout, booklet imposition, poster split, and single long-page export CONVERT & EXPORT • Images ↔ PDF, PDF to images, text, Markdown, HTML, XML, or CSV • Convert Word, Excel, PowerPoint, EPUB, FB2, Markdown, HTML, and email (.eml) to PDF • Export PDF to Office formats where supported SECURITY & SIGNING • Add or remove password protection and permissions • Digital certificate signing (PKCS#12), handwritten signatures, signature validation • Sanitize PDFs, flatten forms, unlock read-only fields POWER TOOLS • Compare two PDFs side by side • Compress PDFs, remove blank pages, auto-rename files • Build multi-step automation workflows for repetitive tasks • Repair damaged PDFs, adjust contrast, apply scanner effects OPEN FROM ANYWHERE Open PDFs and supported documents directly from the Files app or other apps. Share finished files via the system share sheet. Whether you are scanning receipts on the go, signing a contract, or batch-processing documents, PDF Editor Converter delivers a complete PDF workflow—private, fast, and entirely on your device. Supported languages: English, 简体中文, 日本語, Español.

Screenshots

PDF Studio4 screens
PDF Editor Converter4 screens

Verdict

The call

The clearest difference is device support: PDF Editor Converter at 4 against PDF Studio's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 4 level
PDF Studio versus PDF Editor Converter: the parameters behind the verdict, then further details
ParameterPDF StudioPDF Editor Converter
PriceFreeFree
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad, iPod, Mac — better
Requires iOS16.415.5 — better
Further details — not scored
Size4 MB81 MB
Age rating4+4+
DeveloperChu Minh SonHefei Yunyilian Intelligent Technology Co., Ltd

In-app purchases

None

PDF Studio

No in-app purchases

None

PDF Editor Converter

No in-app purchases

Questions

Is PDF Studio free?
PDF Studio is free to download, with no in-app purchases.
Is PDF Editor Converter free?
PDF Editor Converter is free to download, with no in-app purchases.
Do PDF Studio or PDF Editor Converter have ads?
Neither PDF Studio nor PDF Editor Converter shows ads.

Other comparisons