Free PDF Compressor
Compress PDF Online
Shrink PDF files online with quality-preserving presets. Pick the preset that matches how the PDF will be used, and let Convertr handle the rest.
Quality Presets
Prepress · Printer · Ebook · Screen · Lossless
Email-friendly PDFs
Shrink invoices, reports, and contracts so they fit inside common email attachment limits without splitting them across multiple messages.
Faster web downloads
Compress brochures, whitepapers, and product sheets before publishing them so visitors do not wait on slow downloads.
Long-term archives
Use Lossless or Ebook to reduce storage footprint when you are keeping a PDF copy of finished documents.
Online PDF compressor
How to compress a PDF online
Use this page when you need to shrink a PDF without installing Acrobat or a desktop compressor. Convertr keeps the workflow simple: upload the PDF, pick the preset that fits the use case, and download a smaller file.
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Upload your PDF file from your computer, phone, or tablet.
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Choose a quality preset that matches how you will use the PDF.
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Start the compression and wait while Convertr produces a smaller PDF.
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Download the compressed PDF and share, print, or archive it.
What each preset does
Convertr exposes the underlying Ghostscript and qpdf options as plain-language presets. Quality and final size are entirely your choice; no preset is forced.
Prepress (maximum quality)
Highest quality for professional printing. Keeps embedded fonts and images at 300 DPI. Smallest size reduction; best fidelity.
Printer (high quality)
High quality for desktop printing. Images downsampled to 300 DPI. Modest size reduction with strong fidelity.
Ebook (balanced)
Balanced size and quality for screen reading. Images downsampled to 150 DPI. Good for email and web sharing.
Screen (smallest)
Smallest output for low-resolution screen viewing. Images downsampled to 72 DPI. Use only when size matters most.
Lossless (qpdf restructure)
Re-linearises and recompresses object streams with qpdf. No image downsampling or quality change. Best for already-optimised PDFs.
More document tools
أدوات PDF والمستندات ذات الصلة
Need to change format, not just size? Try these other free Convertr tools.
Crop PDF Online
Use the free PDF cropper to trim PDF margins, scanner borders, or unwanted page edges before compressing.
Add Page Numbers to PDF
Stamp page numbers onto a PDF before sharing or printing.
Rotate PDF
Rotate all pages or selected pages in a PDF.
Extract images from PDF
احفظ صور PDF المضمنة كأرشيف ZIP.
Make PDF searchable
Add OCR text to scanned PDFs before archiving or sharing.
استخرج الجداول من PDF
تصدير جداول PDF القابلة للتحديد كملفات CSV أو TSV.
إزالة بيانات PDF الوصفية
Strip common document metadata before sharing a PDF.
فتح قفل PDF
أزِل كلمة مرور فتح معروفة من ملف PDF الخاص بك.
Flatten PDF
Finalize PDF fields, annotations, signatures, and layers before sharing.
محول PDF
Convert PDF files to and from DOCX, JPG, PNG, and other document formats.
قارن قوات الدفاع الشعبي
اكتشف تغييرات النص القابلة للتحديد بين نسختين من ملف PDF.
Word to PDF Converter
Turn Word documents into PDF files that keep their layout when shared or printed.
HTML لتحويل PDF
Render pasted or uploaded HTML as a downloadable PDF.
باور بوينت إلى PDF
تحويل عروض PPT وPPTX إلى ملفات PDF قابلة للمشاركة.
PDF to JPG Converter
Export PDF pages as JPG images for previews, thumbnails, or web uploads.
محول المستندات
Convert PDF, DOCX, EPUB, and other document formats from one hub.
الأسئلة المتكررة
Is this PDF compressor free?
Yes. Convertr lets you compress PDF files for free, with no account, no watermark, and no software installation.
Will my PDF lose quality after compression?
You choose the preset, so you choose the quality. Prepress and Printer keep images at 300 DPI, Ebook downsamples to 150 DPI for screen reading, Screen targets 72 DPI for the smallest file, and Lossless re-saves the PDF without touching image quality.
ما هو الحد الأقصى لحجم ملف PDF؟
You can upload PDF files up to 1 GB, the same limit as every other Convertr tool.
Are uploaded PDFs private?
Files are processed on Convertr servers and automatically deleted after compression. The tool is built for quick file conversion, not long-term document storage.
Which preset should I pick?
Pick Prepress or Printer for documents going to print, Ebook for email or web sharing, Screen when you need the absolute smallest size, and Lossless when the PDF is already optimised and you only want to recompress the structure.
Does Convertr support password-protected PDFs?
Unlock the PDF first if you know the open password and are authorized to modify it. The compressor skips encrypted files it cannot read.