PDF UTILITIES, REIMAGINED.
All your PDF tools.
Simply done.
Free online PDF and file conversion tools.
Merge, compress, sign and convert images on your device.
PDF organization and compression
Merge PDFs, extract selected pages, change page orientation, crop margins and reduce file size.
PDF editing and signing
Add text, handwriting and watermarks to PDF pages.
PDF encryption and decryption
Set an opening password or enter the correct password to save an unlocked copy.
Convert from PDF
Convert PDF to Word, Excel, PowerPoint, JPG, PNG or extractable text.
Images to PDF
Choose JPG, PNG, WebP or HEIC and arrange one or more images into PDF.
Image formats
Convert HEIC, JPG, PNG and WebP for sharing, transparent backgrounds and web use.
Documents to PDF
Convert Word, Excel, PowerPoint and text data into PDF.
Documents and data
Extract DOCX or HTML text, create DOCX documents, and convert CSV and JSON.
Convert PDF and files in your browser
CAPYPDF offers PDF merging, splitting, compression, editing and signing, Office conversion in both directions, and HEIC, JPG, PNG and WebP image conversion. Each format has an independent tool, with processing on your device.
Frequently asked questions / FAQ
Are files uploaded to a server?
No. PDF, image and document processing runs in your browser. This version has no file-upload API. Leaving or reloading the page clears the working files; downloaded results stay in the location you choose.
Can I use it on a phone?
Yes. The hamburger at the top left opens all tools. Choose a tool and use the large button to select a file. The signature area accepts touch input. Limits are 50 MB per file, 100 MB total and 5 MB for text files. Smaller batches are recommended on memory-limited devices.
Does merging preserve every page?
Pages are merged in list order, which you can change with the up and down buttons. If any PDF cannot be read, the whole merge stops instead of producing a file with missing pages. PDFs with permission restrictions but no opening password are handled by the local compatibility reader. Unlock password-protected files first. Rewriting may not preserve bookmarks, attachments or interactive forms; use the original software for documents with certificate signatures.
Why can a PDF have restrictions without an opening password?
Some PDFs restrict printing or editing but open without a password. PDF tools validate files and use the local compatibility reader when needed. Documents requiring an opening password show a clear message; use Decrypt PDF with the correct password first. Damaged files and unsupported protection types are reported separately.
How do the compression modes differ?
Preserve text and links reorganizes PDF objects; the size reduction depends on the source. Compress scanned images rasterizes entire pages and is suitable for scans. Text selection, search, forms, links and existing certificate signatures cannot be preserved in raster mode. If the result is not smaller, the original is provided.
What can editing and signing do?
You can replace recognizable existing text blocks or add text, adjust size and color, and preview the actual output. New text embeds a Traditional Chinese font, which may change its appearance and increase file size. Full-document reflow, scans, outlined text and text inside complex objects are not supported for direct editing. OCR is not included. Handwriting is a visual signature, not a verified certificate signature. The editor is not a complete confidential-data sanitization tool.
How do PDF encryption and decryption work?
Encrypt PDF sets an AES-256 opening password; enter it twice to confirm. Decrypt PDF requires the correct opening or owner password and does not crack passwords. If the document has permission restrictions but no opening password, try leaving the password blank. Passwords are used only for the current browser operation and are never stored or uploaded.
Can Word, Excel and PowerPoint convert to and from PDF?
DOCX, XLSX and PPTX are supported in both directions. Office files are laid out in the browser and exported as page images with an extractable text layer. Complex objects, unusual fonts, charts and print settings may differ. Excel uses cached formula results without recalculating them. Save legacy DOC, XLS and PPT files in a modern format first. Output is limited to 200 pages per conversion; check the result.
Does converting PDF back to Office restore the original?
PDF usually lacks the original paragraphs, formulas and slide objects. For Word and PowerPoint, choose editable text reconstruction or image-based page appearance. Editable mode does not fully restore pictures or complex layouts; image mode does not allow word-by-word editing. Excel infers rows and columns from text positions, with one sheet per PDF page. Original formulas, chart data and workbook structure cannot be restored. Scans have no extractable text; OCR is not included.
Where are the image and document converters?
The top bar has direct buttons for PDF compression, splitting and merging. All PDF tools lists PDF operations and document converters. All image tools lists independent HEIC, JPG, PNG and WebP converters and image-to-PDF tools. Each source/output pair has its own tool. TXT, Markdown, HTML, CSV and JSON to PDF extract and reflow text. HTML does not load external images or execute scripts.
Which image conversions are supported?
All image tools includes HEIC to JPG, HEIC to PNG, other image conversions and images to PDF, with separate tools and batch processing. HEIC uses the first decodable static image; some HDR, burst and unusual encodings may not work. Re-encoding can change colors and transparency, removes photo metadata and may downsample large images.
How do I download PDF pages as images or text?
For PDF to JPG or PNG, choose pages: one page downloads as an image and multiple pages as a ZIP. PDF to TXT extracts existing text without OCR. PDFs with restrictions but no opening password can be tried directly. Use Decrypt PDF first if an opening password is required.
What are the CSV and JSON limits?
Text files use UTF-8. The first CSV row must contain unique, nonempty field names; quoted commas and embedded line breaks are supported. JSON to CSV accepts an array of objects and combines all fields. Formula-looking strings receive an apostrophe prefix for safer spreadsheet import.
Do I need an account?
No account is required. Choose a tool and select files from your device. Processing runs in your browser, and results download to the location you choose. The website does not back up your source files or results.
Release notes
v27View changes
- Fixed reversed tool layouts when switching to Arabic.
- Fixed an old language-loading error remaining visible after a successful retry.
v26View changes
- Improved tool instructions and examples in each language.
v25View changes
- Added more interface languages with a clearer language menu.
- Improved tool instructions and examples in each language.
- Language changes keep your selected tool and files.
v24View changes
- Added clearer tool descriptions, examples and FAQs so you can understand the output before choosing a format.
- Improved Chinese and English explanations of scanned text, transparency and Office layout limits.
- Refined page heading structure while keeping tool controls simple and supporting information collapsible.
v23View changes
- PDF Split now starts with no pages selected. Choose thumbnails or enter page numbers to keep only what you need.
- Empty or invalid page ranges no longer select every page. Select valid pages before starting.
- Added release notes so you can see recent improvements and fixes.
Compress PDF
Choose a compression method to reduce your PDF file size.
Done
What can Compress PDF do?
Choose lossless PDF cleanup or raster compression for scanned documents. The result depends on the original content.
How to use
- Click “Choose files” to add PDF files, or drag them to the upload area.
- Choose lossless cleanup or scanned-image compression.
- Click “Start processing”, then download the result.
Example
For scanned handouts, try image compression. If selectable text and links matter, start with lossless cleanup and compare the downloaded result.
Before you start
Raster compression removes text selection, links and interactive forms. If the output is not smaller, the original file is provided instead.
Limit: 50 MB per file, 5 MB for text files and 100 MB in total. Available device memory may impose smaller limits. Files are not uploaded to a conversion server.
Tool FAQ
Why is my compressed PDF not smaller?
An already optimized file may not shrink after object cleanup. CAPYPDF compares the output size and keeps the original if it is smaller. Try image compression for scans, then check readability.
Can I compress a PDF below 1 MB or 2 MB?
There is no target-size setting. Image quality can be adjusted for scanned-page compression, but the final size depends on page count, resolution and source content.
Which mode preserves selectable text?
Lossless cleanup preserves existing text and links. Scanned-image compression renders pages as images, so text selection, interactive links and forms are not retained.
Can this online PDF compression tool reduce every PDF file?
Compression depends on the file. Already optimized PDFs may not shrink, and an exact target size is not guaranteed. The original is kept if a candidate output is larger.