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DocWello
🇬🇧 EN🇻🇳 VI
100% Client-Side • Instant Speed

All-in-One Online PDF Tools

Merge multiple PDF files, split custom page ranges, compress file size under 25MB for email, and rotate orientation. 100% client-side security in your browser memory.

Chọn hoặc Kéo thả tệp PDF cần nén

Tối ưu hóa dung lượng file PDF để dễ gửi email hoặc tải lên cổng dịch vụ công.

Zero Server Upload
•Files never leave your device
RAM AES-256•HTML5 Client-Side
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Professional Office & Accounting Standard

High-Performance Client-Side PDF Processing

PDF (Portable Document Format) is the universal format for legal agreements, financial statements, and business receipts. DocWello provides an enterprise-grade toolkit that runs locally on your workstation without third-party server exposure.

01. Unlimited PDF Merge

Combine electronic invoices, signed contracts, and scanned receipts into a single document with drag-and-drop ordering.

02. Precise Page Extraction

Extract individual pages or custom intervals (e.g. 1-3, 5, 8-10) without quality degradation.

03. Smart Size Reduction

Optimize internal stream dictionaries to compress file size below 25MB for email attachments.

Quick FAQ

Frequently Asked Questions (FAQ)

Answers to common questions regarding features, client-side security, and usage.

Q1.Is merging and compressing PDF files on DocWello safe for confidential company data?

100% safe. All parsing, page extraction, and compression tasks execute entirely in your local browser memory (RAM) using the pdf-lib WebAssembly engine. Your files are never uploaded to any remote server or cloud storage.

Q2.How many PDF files can I merge at once?

DocWello does not impose any limit on the number of merged files. You can combine 2, 10, or more documents smoothly depending on your device memory.

Q3.How do I specify custom page ranges when splitting a PDF?

You can enter single pages (e.g. 1, 3, 5) or contiguous page intervals separated by hyphens (e.g. 1-4, 7-10). The engine will extract the exact pages into a new clean PDF file.

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