What file formats does the Document Compressor support?

The Document Compressor handles JPG, PNG, PDF, WebP, and HEIC files. Each format has its own dedicated compression tool with format-specific optimizations — JPG uses DCT quality adjustment, PNG uses palette quantization, and PDF targets embedded images while keeping text sharp.

What file formats does the Document Compressor support?

The Document Compressor handles JPG, PNG, PDF, WebP, and HEIC files. Each format has its own dedicated compression tool with format-specific optimizations — JPG uses DCT quality adjustment, PNG uses palette quantization, and PDF targets embedded images while keeping text sharp.

Atualizado em 2026

Compressor de documentos

Compress PDF documents online. Shrink PDF file size to meet email and upload limits while keeping text sharp — free, fast and private.

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Sobre compactação de documentos

PDFs grow large for three reasons: embedded images, duplicate fonts, and high scan resolution. A 20-page report with photos can easily reach 15-25 MB — too heavy for most email providers and upload portals. Document compression tackles each source separately. It resamples embedded images to a lower resolution, subsets fonts so only the characters your document uses are kept, and strips redundant metadata and duplicate internal objects.

The result is a smaller file that looks and prints the same. Text stays crisp at any zoom level because it is vector-based, not pixel-based. Charts, tables, and hyperlinks remain fully functional. The only visible change is a slight softening of embedded photographs at very high zoom — something that rarely matters for on-screen reading or standard printing.

Se você precisar de um tamanho de destino específico, tente compress PDF where you can choose an exact limit like 500 KB, 1 MB, or 2 MB. For general document compression across Word, PowerPoint, and Excel, start here.

How to Compress Documents Online

Reduce document file sizes by up to 85 % in three steps — no software, no sign-up.

Upload Your Documents

Drag and drop files or browse your device. We support PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, and other popular formats.

Pick a Compression Level

Choose maximum compression for the smallest file, balanced mode for the best quality-to-size ratio, or set a custom target size for precise control.

Baixar documentos compactados

Preview the result and download individually or as a ZIP. Processing takes seconds and all files are automatically deleted after 2 hours.

Why Choose Our Document Compressor

How It Works Inside Your PDF

We examine each element separately. Embedded images get resampled to a sensible resolution. Fonts are subsetted to include only the characters the document uses. Duplicate objects and unused metadata are removed.

All Major Formats

Compress PDF, Word (DOC/DOCX), PowerPoint (PPT/PPTX), and Excel (XLS/XLSX). Each format uses a compression approach matched to its internal structure.

Private and Temporary

Your documents travel over 256-bit SSL encryption. We store nothing permanently — all files are automatically deleted within 2 hours of processing.

Batch Processing

Upload multiple documents and compress them all with the same settings. Great for clearing out oversized archives, preparing email attachments, or tidying up shared drives.

Formatting Stays Intact

Text, images, tables, charts, links, bookmarks, and form fields all remain functional after compression. Your documents look and work exactly as they did before — just smaller.

Meet Upload Limits

Portais governamentais, sistemas de envio de universidades e provedores de e-mail impõem limites de tamanho. Nosso compressor ajuda você a caber nos limites de 5 MB, 2 MB ou até 500 KB sem dividir seu documento.

Document Compressor FAQ

Quick answers about target file sizes, expected quality, privacy, and the best ways to reduce document file size.

How do I compress a file for free with the Document Compressor?

Pick the format and target size you need, upload your file, and click Compress. The result downloads in seconds — free, with no watermark and no account required.

How small can I make my file?

You can target sizes from 50KB up to 2MB. The Document Compressor keeps quality as high as possible while hitting the size you choose, so the file still looks good and fits the limit you need to meet.

Will compressing reduce quality?

A smaller file always involves some trade-off, but the Document Compressor optimises for perceptual quality — images stay sharp at normal viewing size and document text stays crisp. Smaller reductions are effectively invisible.

Quais formatos de arquivo o Compressor de Documentos suporta?

O Compressor de Documentos lida com arquivos JPG, PNG, PDF, WebP e HEIC. Cada formato tem sua própria ferramenta de compactação dedicada com otimizações específicas de formato – JPG usa ajuste de qualidade DCT, PNG usa quantização de paleta e PDF tem como alvo imagens incorporadas, mantendo o texto nítido.

Are my files kept private during compression?

Yes. Uploads use an encrypted HTTPS connection, compression runs on an isolated worker, and both your original and the compressed file are deleted automatically within a short window — nothing is stored, shared, or used for training.

Guides for Document Compressor

Read upload-limit, file-size, and quality-tradeoff guides related to Document Compressor.

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