- \n
- Which way suits you?<\/a><\/li>\n\n\n
- Compress a PDF online: step by step<\/a><\/li>\n\n\n
- Choosing DPI and image quality<\/a><\/li>\n\n\n
- Additional options online<\/a><\/li>\n\n\n
- Offline in the PDF24 Toolbox<\/a><\/li>\n\n\n
- PDF24 Compress: see the new size first, watch a folder<\/a><\/li>\n\n\n
- Right-click in File Explorer and in PDF24 Reader<\/a><\/li>\n\n\n
- Small from the start: PDF printer and profiles<\/a><\/li>\n\n\n
- Compress automatically<\/a><\/li>\n\n\n
- From the command line<\/a><\/li>\n\n\n
- Make a PDF small enough for email<\/a><\/li>\n\n\n
- Why does my PDF hardly get smaller, or even larger?<\/a><\/li>\n\n\n
- Images or drawings are blurry after compressing<\/a><\/li>\n\n\n
- How large may the file be?<\/a><\/li>\n\n\n
- Problems and solutions<\/a><\/li>\n\n<\/ul>\n\n\n\n
Which way suits you?<\/h2>\n\n\n\n
- \n
- Shrink a finished PDF quickly, on any device:<\/strong> online with Compress PDF<\/a> \u2192 step by step<\/a><\/li>\n\n\n
- Without the internet, the file stays on your PC:<\/strong> in the PDF24 Toolbox with \"Compress PDF\" \u2192 Toolbox<\/a><\/li>\n\n\n
- See the new size before saving, many files, watch a folder:<\/strong> PDF24 Compress \u2192 PDF24 Compress<\/a><\/li>\n\n\n
- The PDF is being created right now by printing:<\/strong> save it with a smaller profile straight away \u2192 PDF printer and profiles<\/a><\/li>\n\n\n
- Your scanner saves to a folder:<\/strong> shrink every new PDF there automatically \u2192 hot folder<\/a><\/li>\n\n\n
- Many files regularly, without clicking:<\/strong> compress automatically<\/a> or use the command line<\/a><\/li>\n\n<\/ul>\n\n\n\n
The online tools work on Windows, Mac, Linux, iPhone and Android. The free PDF24 Creator<\/a> with the Toolbox, PDF24 Compress and the PDF printer is available for Windows.<\/p>\n\n\n\n
How much a PDF shrinks depends on its content.<\/strong> It is almost always the images that make a PDF large: photos, scanned pages, graphics. PDF24 makes them much smaller, often a fraction of the original size. A PDF that contains only text is usually small already and hardly gets smaller (why<\/a>).<\/p>\n\n\n\n
Compress a PDF online: step by step<\/h2>\n\n\n\n
- \n
- Open Compress PDF<\/a>.<\/li>\n\n\n
- Click \"Choose files\" or drag the PDF into the file box. You can add several files; each one is compressed on its own. Word files, images and other files are converted to PDF first.<\/li>\n\n\n
- For a first try, leave \"DPI\" (144) and \"Image quality\" (75 %) as they are. What the values do is explained in the next section<\/a>.<\/li>\n\n\n
- Click \"Compress\".<\/li>\n\n\n
- Below the result PDF24 shows by how much the size has been reduced. Click \"Download\", or send the file right away with \"Email\".<\/li>\n\n<\/ol>\n\n\n\n
![\"Compress](\"https:\/\/help.pdf24.org\/en\/wp-content\/uploads\/sites\/3\/2026\/11\/compress-online.png\")
For a first try, keep the defaults and click \"Compress\"<\/figcaption><\/figure>\n\n\n\n Still too large? Change the values and click \"Compress\" again. Each run appears as a separate result, so you can compare them. PDF24 remembers your values for your next visit, including the checkmarks under the gear icon. The round arrow button on the frame of the options (\"Reset options to default values\") brings back the defaults; it appears as soon as a value differs from the default.<\/p>\n\n\n\n
If the PDF is password protected, PDF24 asks for the password. The compressed file has no password; protect it again with Protect PDF<\/a> if needed. Your files are deleted from the PDF24 server automatically after one hour.<\/p>\n\n\n\n
Tip:<\/strong> If you have just used another tool, for example to merge PDFs, you don't have to download the result first: there is a \"Compress\" button below the result (in the Toolbox as well).<\/p>\n\n\n\n
Choosing DPI and image quality<\/h2>\n\n\n\n
Both values only affect the images<\/strong> in the PDF. Text and lines stay sharp.<\/p>\n\n\n\n
- \n
- \"DPI\"<\/strong> (dots per inch, default 144) is the highest resolution at which images are stored. An image with a higher resolution, such as a scan at 300 DPI, is scaled down to this value. Images that already have fewer DPI are not scaled down, but they are saved again at the chosen image quality if that makes them smaller.<\/li>\n\n\n
- \"Image quality\"<\/strong> (default 75 %) controls the JPEG compression of the images. Lower values give smaller files but more artefacts (blocky patterns, smeared edges).<\/li>\n\n<\/ul>\n\n\n\n
These values are a good start:<\/p>\n\n\n\n
- \n
- For reading on screen and for email:<\/strong> the defaults, 144 DPI and 75 %.<\/li>\n\n\n
- As small as possible, photos may suffer:<\/strong> 96 DPI and 50 %.<\/li>\n\n\n
- Scans with small print, certificates, plans:<\/strong> 150\u2013200 DPI and 75\u201385 %.<\/li>\n\n\n
- For printing in good quality:<\/strong> 300 DPI and 85 %.<\/li>\n\n<\/ul>\n\n\n\n
PDF24 only replaces an image if it gets smaller. Pure black-and-white scans (1 bit, as used for faxes) are left unchanged because they are already stored very compactly.<\/p>\n\n\n\n
Without any quality loss?<\/strong> That usually gains little: without loss, images could be neither scaled down nor compressed again \u2013 and it is the images that make a PDF large. To lose as little as possible, choose a higher \"Image quality\" and more \"DPI\", switch off \"Rasterize heavy graphics\" under the gear icon so graphics stay vector graphics, and check the result.<\/p>\n\n\n\n
Additional options online<\/h2>\n\n\n\n
The gear icon (\"Additional options\") opens further settings. The first four are switched on:<\/p>\n\n\n\n
- \n
- \"Remove thumbnails\":<\/strong> removes embedded page thumbnails; PDF viewers create them themselves.<\/li>\n\n\n
- \"Deduplicate streams\":<\/strong> content that occurs several times, such as the same logo on every page, is stored only once.<\/li>\n\n\n
- \"Rasterize heavy graphics\":<\/strong> pages made of a very large number of vector graphics (plans, charts) are stored as an image at the DPI value; the text on them stays text. If fine lines look blurry afterwards, switch this option off (more<\/a>).<\/li>\n\n\n
- \"Subset embedded fonts\":<\/strong> keeps only the characters of each font that the document actually uses. This saves a lot when complete fonts are embedded.<\/li>\n\n<\/ul>\n\n\n\n
Switched off by default:<\/p>\n\n\n\n
- \n
- \"Use modern image compression\":<\/strong> stores images as JPEG 2000 where that makes them smaller. Takes longer.<\/li>\n\n\n
- \"Convert images to grayscale\":<\/strong> turns only the images gray; coloured text and coloured areas keep their colour. To turn the whole PDF gray or black and white, use PDF to grayscale<\/a>.<\/li>\n\n\n
- \"Maximum Flate compression\":<\/strong> packs the remaining data as tightly as possible, without loss. Saves a little, takes longer.<\/li>\n\n\n
- \"Flatten form\":<\/strong> form fields become fixed content and can no longer be filled in.<\/li>\n\n\n
- Removing things:<\/strong> \"Strip output intents\" (colour profiles for printing; not for PDF\/A files, which are no longer valid PDF\/A afterwards), \"Strip attachments\", \"Strip annotations\" (comments, highlights, links and form fields including the values entered; to keep a filled-in form, use \"Flatten form\"), \"Remove bookmarks\", \"Strip metadata\" (title, author etc.) and \"Strip structural information\" (tags for screen readers; the PDF is no longer accessible afterwards).<\/li>\n\n<\/ul>\n\n\n\n
![\"The](\"https:\/\/help.pdf24.org\/en\/wp-content\/uploads\/sites\/3\/2026\/11\/compress-additional-options.png\")
The additional options behind the gear icon, the first four are ticked by default<\/figcaption><\/figure>\n\n\n\n The removal options usually save little unless the PDF contains large attachments. Only use them if you really don't need what they remove.<\/p>\n\n\n\n
Offline in the PDF24 Toolbox<\/h2>\n\n\n\n
- \n
- Open the PDF24 Toolbox (part of PDF24 Creator<\/a>) and choose \"Compress PDF\".<\/li>\n\n\n
- Load one or more PDFs.<\/li>\n\n\n
- Set \"DPI:\" and \"Image quality:\" (defaults 144 and 75, what they mean<\/a>). With \"Color\" set to \"Gray\" the images are also converted to grayscale.<\/li>\n\n\n
- Click \"Compress\". The result list shows the old and the new size next to each file.<\/li>\n\n\n
- Save the result.<\/li>\n\n<\/ol>\n\n\n\n
![\"PDF24](\"https:\/\/help.pdf24.org\/en\/wp-content\/uploads\/sites\/3\/2026\/11\/compress-toolbox-compress-pdf.png\")
The result shows the old (struck through) and the new size next to each file<\/figcaption><\/figure>\n\n\n\n File names and location<\/strong> (since version 11.34.0):<\/p>\n\n\n\n
- \n
- \"Save file suffix\"<\/strong> is appended to the name, by default
_compressed<\/code> (\"report_compressed.pdf\"). The placeholders{dpi}<\/code>,{quality}<\/code> and{color}<\/code> insert the values of the run:_{dpi}dpi_{quality}<\/code> gives \"report_144dpi_75.pdf\". If the field is empty, the file keeps its name.<\/li>\n\n\n- \"Save each file next to its original\":<\/strong> with several files, each one is saved in the folder of its original instead of PDF24 asking for one folder.<\/li>\n\n\n
- If a file with that name already exists, PDF24 asks whether to replace it or keep both.<\/li>\n\n<\/ul>\n\n\n\n
The Toolbox never saves a larger file: if the result is not smaller, you get the original back. The additional options of the online tool are not available in the Toolbox; fonts are always subset there, data is always packed as tightly as possible, and graphics are never rasterized.<\/p>\n\n\n\n
PDF24 Compress: see the new size first, watch a folder<\/h2>\n\n\n\n
PDF24 Compress is a separate program of PDF24 Creator. It shows the new size of every file before you save. You open it<\/p>\n\n\n\n
- \n
- in the PDF24 Toolbox with \"Open PDF24 Compress\",<\/li>\n\n\n
- in the PDF24 Assistant (after printing to PDF24) with \"Compress\",<\/li>\n\n\n
- in File Explorer with a right-click \u203a \"PDF24\" \u203a \"Open with\" \u203a \"Compress\" (in the new context menu of Windows 11: \"Open with Compress\").<\/li>\n\n<\/ul>\n\n\n\n
How to use it:<\/p>\n\n\n\n
- \n
- Add files with \"Add file\" or drag them into the list. PDF24 calculates the new size at once: the list shows \"Size\" and \"New Size\", in green if the file gets smaller, in red if it would get larger.<\/li>\n\n\n
- Change \"DPI\", \"Image quality\" or \"Color model\" (\"GRAY\" for grayscale) and click \"Calc Size\" until the new size suits you.<\/li>\n\n\n
- Check the result first with \"Open File\".<\/li>\n\n\n
- Click \"Save\".<\/li>\n\n<\/ol>\n\n\n\n
![\"PDF24](\"https:\/\/help.pdf24.org\/en\/wp-content\/uploads\/sites\/3\/2026\/11\/compress-pdf24-compress.png\")
PDF24 Compress shows the new size before you save<\/figcaption><\/figure>\n\n\n\n More settings at the bottom of the window:<\/p>\n\n\n\n
- \n
- \"Save smaller file\"<\/strong> (off by default): if a file does not get smaller, PDF24 saves a copy of the original under the new name.<\/li>\n\n\n
- \"Save file suffix\"<\/strong> (default
_compressed<\/code>, without the placeholders of the Toolbox) and \"Save each file next to its original\"<\/strong> as in the Toolbox<\/a>.<\/li>\n\n\n- \"Hot folder\":<\/strong> a folder that PDF24 Compress watches (compress automatically<\/a>).<\/li>\n\n<\/ul>\n\n\n\n
Right-click in File Explorer and in PDF24 Reader<\/h2>\n\n\n\n
In Windows File Explorer:<\/strong> select one or more PDFs, right-click them and choose \"PDF24\" \u203a \"Compress\" (on Windows 11 in the new context menu or under \"Show more options\"; depending on the installation, \"PDF24\" opens the File Tools window, where you click \"Compress\"). In the window \"PDF compression settings\" you set \"DPI\", \"Image quality\", \"Color model\" and \"Save file suffix\" (with the placeholders
{dpi}<\/code>,{quality}<\/code>,{color}<\/code> as in the Toolbox<\/a>), with several files also \"Save each file next to its original\". \"Remember settings\" keeps the values for next time. After \"Ok\", PDF24 asks where to save. With an empty suffix and a single file, PDF24 suggests the original file so you can replace it.<\/p>\n\n\n\nIn PDF24 Reader:<\/strong> choose \"Save compressed\" in the save menu. The same window with the compression settings opens, then you choose the file name. \"Save using profile\" saves with a quality profile instead (profiles<\/a>).<\/p>\n\n\n\n
Small from the start: PDF printer and profiles<\/h2>\n\n\n\n
If you create the PDF with the \"PDF24\" PDF printer (how it works<\/a>), you set the size right when saving. In the PDF24 Assistant, choose the output profile above the buttons:<\/p>\n\n\n\n
- \n
- \"Low quality\":<\/strong> images at 96 DPI at most, strong JPEG compression. The smallest file.<\/li>\n\n\n
- \"Medium quality\":<\/strong> 150 DPI. Usually the best choice for email.<\/li>\n\n\n
- \"Good quality\"<\/strong> (default): 300 DPI.<\/li>\n\n\n
- \"High quality\":<\/strong> 600 DPI.<\/li>\n\n\n
- \"Best quality\":<\/strong> images are not scaled down.<\/li>\n\n<\/ul>\n\n\n\n
The selected profile applies to \"Save as PDF\", \"Send by Email\" and \"Compress\". The Assistant remembers the profile you chose last.<\/p>\n\n\n\n
![\"PDF24](\"https:\/\/help.pdf24.org\/en\/wp-content\/uploads\/sites\/3\/2026\/11\/compress-assistant-profiles.png\")
Choose the profile for the output file above the buttons<\/figcaption><\/figure>\n\n\n\n Fine-tuning:<\/strong> \"Save as...\" \u203a PDF opens the settings. Under \"General\" choose the \"Quality of PDF\", under \"Resolution\" (\"Use resolution\") the DPI values for colour, gray and black-and-white images, under \"Compression\" the \"JPEG Quality\". If you need certain settings again and again, create your own profile: in the Toolbox with \"Manage output profiles\" or in the Assistant with \"Output profiles\" at the bottom. Your own profiles then appear in the profile list.<\/p>\n\n\n\n
A profile affects images the same way as compressing. A PDF that was already created with lower values does not get smaller with \"Good quality\". To shrink finished PDFs, the tools above are the better choice.<\/p>\n\n\n\n
Compress automatically<\/h2>\n\n\n\n
Save small automatically when printing:<\/strong> in the PDF24 settings (in the Toolbox \"Open Settings\"), section \"PDF Printer\", choose \"Automatically save documents after printed\" under \"PDF Printer Tool\", and under \"Auto Save\" set the \"Profile\", for example to \"Medium quality\". Every print job is then saved in this quality without asking (more about automatic saving<\/a>).<\/p>\n\n\n\n
Shrink existing PDFs automatically (hot folder):<\/strong> in PDF24 Compress, choose a folder under \"Hot folder\", for example the folder your scanner saves to. Every PDF that arrives there is compressed with the values set in the window and saved next to the original with the \"Save file suffix\" (
_compressed<\/code> if empty). The original is kept. The folder is only watched while PDF24 Compress is open; files that arrive in the meantime are processed the next time you open it. Files that are still being written are left alone until they are complete; an incomplete or damaged file is shown as \"Incomplete\" in the list.<\/p>\n\n\n\nFor scheduled tasks without an open window, use the command line<\/a>.<\/p>\n\n\n\n
From the command line<\/h2>\n\n\n\n
The PDF24 DocTool compresses without any window, for example from a batch file or the Windows Task Scheduler:<\/p>\n\n\n\n
\"C:\\Program Files\\PDF24\\pdf24-DocTool.exe\" -compress -dpi 144 -imageQuality 75 -silent -outputFile \"C:\\Scans\\small.pdf\" \"C:\\Scans\\large.pdf\"<\/code><\/pre>\n\n\n\nAll PDFs of a folder into another folder:<\/p>\n\n\n\n
\"C:\\Program Files\\PDF24\\pdf24-DocTool.exe\" -compress -dpi 120 -imageQuality 70 -expandDirs -includeFileExtensions .pdf -silent -outputDir \"C:\\Scans\\small\" \"C:\\Scans\"<\/code><\/pre>\n\n\n\n- \n
-dpi<\/code> and-imageQuality<\/code> correspond to \"DPI\" and \"Image quality\" (defaults 144 and 75);-colorModel gray<\/code> converts images to grayscale.<\/li>\n\n\n- With
-outputDir<\/code>, the results are named like the original plus the values, e.g. \"scan1_120dpi_70%.pdf\".-outputFile -<\/code> saves each result next to its input file.<\/li>\n\n\n-silent<\/code> shows no windows and reports errors through the exit code (0 = success).<\/li>\n\n\n-useCompressionParamsDialog<\/code> shows the window with the compression settings first (not together with-silent<\/code>).<\/li>\n\n<\/ul>\n\n\n\nTo save with a profile right when creating the PDF:
-applyProfile -profile default\/medium<\/code> (profilesdefault\/low<\/code>,default\/medium<\/code>,default\/good<\/code>,default\/high<\/code>,default\/best<\/code>). The DocTool runs one command per call, so merging and compressing are two calls. All options are described in the manual<\/a>.<\/p>\n\n\n\nMake a PDF small enough for email<\/h2>\n\n\n\n
PDF24 has no \"compress to 5 MB\" option; how small a file gets depends on its images. This is how you get below the limit of your email provider or portal quickly:<\/p>\n\n\n\n
- \n
- Compress with the default values first (144 DPI, 75 %).<\/li>\n\n\n
- Still too large? Lower the \"DPI\" first (e.g. 120 or 96), then the \"Image quality\" (e.g. 60 or 50). PDF24 Compress shows the new size before saving (more<\/a>).<\/li>\n\n\n
- No colour needed, for example for certificates or invoices? Grayscale saves even more.<\/li>\n\n\n
- Still not small enough? Split the PDF into parts: Split PDF<\/a> with the mode \"By file size\" and the \"Maximum size\" in MB creates parts that each stay below it; only a page that is larger on its own goes into a file of its own. So compress first (in the Toolbox since version 11.34.0, more<\/a>).<\/li>\n\n<\/ol>\n\n\n\n
Online, you can send the result right away with \"Email\" below the result. From 10 MB PDF24 points out that many mailboxes don't accept attachments that large; above 72 MB PDF24 doesn't offer sending. Download the file instead and share it another way.<\/p>\n\n\n\n
Job applications:<\/strong> first merge<\/a> your cover letter, CV and certificates, then compress the finished PDF. For scanned certificates with small print, 150 to 200 DPI is a good compromise between size and legibility.<\/p>\n\n\n\n
Make scanned PDFs searchable:<\/strong> with text recognition (OCR)<\/a>. The recognized text layer is kept when compressing.<\/p>\n\n\n\n
Why does my PDF hardly get smaller, or even larger?<\/h2>\n\n\n\n
- \n
- The PDF contains hardly any images.<\/strong> Text takes little space. A text-only PDF from Word is usually so small already that there is little left to gain.<\/li>\n\n\n
- The images are small already.<\/strong> If an image already has fewer DPI than set, it is not scaled down; if it was compressed strongly before, the image quality gains little as well. It only gets smaller with lower values.<\/li>\n\n\n
- Black-and-white scans<\/strong> (1 bit) are stored very compactly already and stay unchanged.<\/li>\n\n\n
- The PDF has already been compressed,<\/strong> with PDF24 or another program. A second run with the same values gains little.<\/li>\n\n<\/ul>\n\n\n\n
Compressing no longer makes a file larger: online you get your file back unchanged with the note \"Your file was already optimally compressed\". On the PC (Toolbox, PDF24 Compress, right-click, command line) you get the original back as well. The exception applies online only: if you chose options that change the content (such as grayscale or removing something), you get that result even if it is not smaller. On the PC you get the coloured original back even with \"Gray\" if the result is not smaller; for a fully gray PDF use PDF to grayscale<\/a>.<\/p>\n\n\n\n
A PDF created with the PDF printer is much larger than expected?<\/strong> Choose a smaller profile<\/a> in the Assistant. With the driverless PDF printer on Windows 11, version 11.31.0 embedded every font again on every page; since version 11.32.0 each font is in the PDF only once. Update PDF24 Creator<\/a> if you have an older version. If a program prints pages as images, the PDF becomes large too; you can tell because the text cannot be selected.<\/p>\n\n\n\n
Images or drawings are blurry after compressing<\/h2>\n\n\n\n
- \n
- Photos and scans are blurry or pixelated:<\/strong> raise the \"DPI\"; it has the strongest effect on sharpness. For small print on scans, use 200 DPI, 300 for very small print. Blocky patterns and smeared edges come from an \"Image quality\" that is too low; use 85 or more.<\/li>\n\n\n
- Fine lines, plans or charts are blurry (online):<\/strong> switch off \"Rasterize heavy graphics\" under the gear icon. The graphics then stay vector graphics. On the PC (Toolbox, PDF24 Compress) vector graphics always stay vector graphics.<\/li>\n\n\n
- Keep the original:<\/strong> detail that has been scaled away cannot be restored. Always compress again from the original, not from the already compressed result.<\/li>\n\n<\/ul>\n\n\n\n
How large may the file be?<\/h2>\n\n\n\n
- \n
- Online:<\/strong> each file up to 1,000 MB, all files of one run together up to 10 GB. Large files take time to upload.<\/li>\n\n\n
- Offline in the Toolbox and in PDF24 Compress:<\/strong> no fixed limit; the limit is the memory of your PC. Since versions 11.33.0 and 11.34.0, PDF24 also compresses books and plans of several hundred MB, files with very many bookmarks or fonts, which used to fail with an out-of-memory error. So update first.<\/li>\n\n\n
- If a PDF consists of an exceptionally large number of parts (e.g. millions of bookmarks), you get it back unchanged; online PDF24 says so below the result.<\/li>\n\n<\/ul>\n\n\n\n
Problems and solutions<\/h2>\n\n\n\n
- Offline in the Toolbox and in PDF24 Compress:<\/strong> no fixed limit; the limit is the memory of your PC. Since versions 11.33.0 and 11.34.0, PDF24 also compresses books and plans of several hundred MB, files with very many bookmarks or fonts, which used to fail with an out-of-memory error. So update first.<\/li>\n\n\n
- Fine lines, plans or charts are blurry (online):<\/strong> switch off \"Rasterize heavy graphics\" under the gear icon. The graphics then stay vector graphics. On the PC (Toolbox, PDF24 Compress) vector graphics always stay vector graphics.<\/li>\n\n\n
- The images are small already.<\/strong> If an image already has fewer DPI than set, it is not scaled down; if it was compressed strongly before, the image quality gains little as well. It only gets smaller with lower values.<\/li>\n\n\n
- With
- \"Medium quality\":<\/strong> 150 DPI. Usually the best choice for email.<\/li>\n\n\n
- \"Save file suffix\"<\/strong> (default
- \"Save smaller file\"<\/strong> (off by default): if a file does not get smaller, PDF24 saves a copy of the original under the new name.<\/li>\n\n\n
- \"Save each file next to its original\":<\/strong> with several files, each one is saved in the folder of its original instead of PDF24 asking for one folder.<\/li>\n\n\n
- \"Convert images to grayscale\":<\/strong> turns only the images gray; coloured text and coloured areas keep their colour. To turn the whole PDF gray or black and white, use PDF to grayscale<\/a>.<\/li>\n\n\n
- \"Deduplicate streams\":<\/strong> content that occurs several times, such as the same logo on every page, is stored only once.<\/li>\n\n\n
- As small as possible, photos may suffer:<\/strong> 96 DPI and 50 %.<\/li>\n\n\n
- \"Image quality\"<\/strong> (default 75 %) controls the JPEG compression of the images. Lower values give smaller files but more artefacts (blocky patterns, smeared edges).<\/li>\n\n<\/ul>\n\n\n\n
- Without the internet, the file stays on your PC:<\/strong> in the PDF24 Toolbox with \"Compress PDF\" \u2192 Toolbox<\/a><\/li>\n\n\n
- Compress a PDF online: step by step<\/a><\/li>\n\n\n